Bloodstream Infection - an overview (2023)

Bloodstream infections (BSI) are the most common invasive infection caused by Enterobacter species.

From: Reference Module in Biomedical Sciences, 2014

Related terms:

  • Central Venous Catheter
  • Bacteremia
  • Antiinfective Agent
  • Catheter Infection
View all TopicsNavigate Right


John E. Bennett MD, in Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases, 2020

Sepsis and Bloodstream Infections

With these limitations in mind, the ABA released criteria for sepsis in 2007 that could be used as a trigger for the concern of ongoing infection; however, these parameters do not appear to perform ideally in the clinical setting (Table 314.1).96,101,102 Procalcitonin continues to be the most studied biomarker to attempt to diagnose sepsis.103–105 A meta-analysis found that using a cutoff of 1.5 ng/mL (rather than 0.5 ng/mL) led to an area under the curve of 0.8 in predicting sepsis; however, the assays used, definitions of sepsis, and included populations were highly heterogeneous, making real-world interpretation a continuing challenge.103

Bloodstream infections are diagnosed by using the standard analysis of pathogen, clinical syndrome, and number of positive cultures.101 The needed quantity of blood or use of both anaerobic and aerobic bottles at the time of culturing is not clear.68 Although patients can develop bacteremia after burn wound manipulation in the early postburn period, the clinical relevance of this bacteremia is uncertain. It is also unclear whether bacteremia is associated with mortality in burn patients.106–108

Bloodstream Infections

Carlos Franco-Paredes MD, MPH, in Core Concepts in Clinical Infectious Diseases (CCCID), 2016

Diagnostic approach to bloodstream infections

Bloodstream infections include infective endocarditis, central venous catheter-associated bloodstream infections, primary bacteremia, and those with secondary bacteremia due to focal infections including abscesses, osteomyelitis, urinary tract infections, or pneumonia (Fig.2.1). Bloodstream infection is a major cause of morbidity and mortality despite the availability of broad spectrum and effective antimicrobials and major advances in supportive care. Bacterial endocarditis accounts for approximately 3–8% of cases of bloodstream infections (see chapter: Neck and Thoracic Infections).

Bloodstream Infection - an overview (1)

Figure 2.1. Gram-negative, gram-positive, and Candida bloodstreams infections.

An infectious pathogen reach the bloodstream by direct invasion into blood vessels, via lymphatic vessels draining a focus of infection (ie, abscess), or through vascular devices such as needles of catheters. It may also occur without a clearly identifiable mechanism, for example, in some cases of complicated community-acquired S. aureus bacteremia.1,2 The spleen is major immune organ for responding to invasive pathogens reaching the bloodstream. Sterilization and clearance of viable bacteria from the bloodstream and from the original source of infection is crucial in improving those physiological parameters of SIRS.3 Beside source removal (eg, removal of an intravascular device; or surgical drainage of an intraabdominal abscess) and the institution of specific antimicrobial therapy, the goal of treating a patient with sepsis is to maintain cellular oxygenation via support of organ perfusion.

Blood cultures are usually obtained along with clinical investigations to search for a focus of infection and therefore provide specific antimicrobial therapy. Blood cultures should not be routinely ordered for adult patients with isolated fever or leucocytosis without considering factors such as the presence of systemic inflammatory response syndrome (SIRS) or the presence of chills, both of which raise the pretest probability of blood cultures yielding bacteremia in the right clinical setting.1

View chapterPurchase book

Read full chapter


(Video) Bloodstream infections

Antifungal Therapy in the Surgical Patient

Andrew M. Cameron MD, FACS, FRCS(Eng)(hon), FRCS(Ed)(hon), FRCSI(hon), in Current Surgical Therapy, 2020

Fungal Bloodstream Infections

Fungi are the fourth most common pathogen isolated in bloodstream infections overall and the third most common pathogen in intensive care units in the United States. The majority of cases are attributed toCandida species, in particularC. albicans. Candidemia occurs more commonly at the two extremes of age. Despite advances in pharmacologic agents, fungal bloodstream infections continue to carry an associated mortality rate of between 40% and 60%.

As with other candidal infections, risk factors include prolonged antibiotics treatment, total parenteral nutrition, neutropenia, immunosuppression, hemodialysis, previous fungal colonization, presence of an intravascular catheter, major surgery, and burns. Prolonged critical illness increases the risk of colonization withCandida, which then increases the risk of bloodstream infection. It is believed that once colonization occurs,Candida obtains access to the bloodstream via translocation across the mucosal barrier in the GI tract, IV catheter, or from an invasive localized infection. Blood cultures remain the gold standard for diagnosis; however, sensitivity of blood cultures is less than 50%. Newer diagnostic assays, including polymerase chain reaction, beta-D-glucan, and T2Candida, are still undergoing investigation and are not widely used.C. glabrata has been increasing and now composes about one-fourth of bloodstream isolates. This organism has an increased likelihood of resistance to azoles and potential for multidrug resistance. Sensitivity testing should be performed on all candidal bloodstream isolates.

Treatment recommendations vary for specific patient populations, taking into consideration recent drug exposure and risk factors for infection due to resistant strains. Fluconazole remains a reasonable option for noncritically ill patients who have no previous exposure to azoles and lack additional risk factors forC. glabrata (e.g., advanced age, malignancy, diabetes mellitus). Fluconazole should be given with an initial loading dose of 800 mg (12 mg/kg), followed by 400 mg (6 mg/kg) daily. Echinocandins are preferred for treatment of patients with greater risk factors, including neutropenic patients, and those at risk for infection withC. glabrata orC. krusei isolates. Echinocandin dosing recommendations include: caspofungin at a loading dose of 70 mg, then 50 mg daily; micafungin 100 mg daily; or anidulafungin at a loading dose of 200 mg, then 100 mg daily. First-line therapy in neutropenic patients remains echinocandins, however liposomal amphotericin B formulations (3–5 mg/kg daily) also may be used. Patients should have blood cultures drawn every 1 to 2 days to monitor for clearance. Treatment should continue for 2 weeks after the first documented negative blood culture.

Central venous catheters should be removed as early as possible in patients with candidemia because it may be primary source of infection or become infected secondarily. Retention of the catheter may be considered in patients with implanted access devices and candidemia in the setting of cytotoxic chemotherapy and neutropenia. All patients with candidemia should have a dilated funduscopic examination by an ophthalmologist within the first week after diagnosis to evaluate for chorioretinitis or endophthalmitis.

Bloodstream infection

RAMON Z. SHABAN BSc(Med), BN, GradCertInfCon, PGDipPH&TM, MEd, MCommHealthPrac(Hons), PhD, RN, CICP-E, FCENA, FACN, FACIPCSenior Editor, Infection, Disease and Health, ... DEBOROUGH MACBETH RN, PhD, CICP-E, in Epidemiology of Healthcare-associated Infections in Australia, 2021

Definitions and context

Examples of BSI surveillance definitions are provided in Table 5.1. Both ECDC and the United States Centers for Disease Control and Prevention (CDC) definitions include laboratory confirmation and other clinical elements depending on the organism identified. Once established as a BSI, further criteria can be worked through to determine a source (not included in Table 5.1). The Australian definition of SAB commences with a positive blood culture for S. aureus, and then other criteria are sought to determine if it is considered healthcare associated. For further and more detailed explanations and their applications, please refer to the source document referenced.

The report presents a collation and analysis of the three types of Australian healthcare-associated bloodstream infection data: 1. proportions of bloodstream infection hospital-acquired complication (HAC) for the period 1 July 2017 to 30 June 2019; 2. publicly available state and territory jurisdiction surveillance data for the period 1 July 2017 to 30 June 2019; and 3. peer-reviewed literature data for the period 1 January 2010 to 31 August 2019. Each of these potential data sources was interrogated to gain insight into the incidence of healthcare-associated bloodstream infection in Australia and the findings are presented on the following pages.

View chapterPurchase book

Read full chapter


Health Care–Associated Infections (HAIs)

Fred F. Ferri MD, FACP, in Ferri's Clinical Advisor 2022, 2022

Health Care–Associated Bloodstream Infections

General associations:


IV lines

(Video) Mission Pathogen: Luminex Virtual Reality Experience - Bloodstream Infection


Arterial lines


Central venous pressure (CVP) lines: Lead to catheter-associated bloodstream infection (CLABSI)






Lack of safe injection best practices

Fever possibly only presenting sign

Exit site of all vascular lines carefully evaluated for:








Purulent drainage

Usual organisms for device-associated bacteremia:


S. aureus (including MRSA)


Staphylococcus epidermidis for long-term IV lines


Enterobacter spp.


Klebsiella spp.


Candida spp.


Pseudomonas aeruginosa may come from a water source or reflect cutaneous bacteria

Phlebitis in 1.3 million patients yearly

Approximately 10,000 annual deaths from IV sepsis

Prevention bundle to eliminate central line-associated bloodstream infections (CLABSIs):


Meticulous sterile technique during central catheter line insertion.


Emphasis should be placed on attention to detail, including handwashing, adherence to guidelines for catheter insertion and maintenance, appropriate use of antiseptic solutions such as chlorhexidine (CHG) to prepare the skin before central line insertion.


Modified catheter, for example, antiseptic-coated line, may reduce risk for endoluminal colonization and catheter-related sepsis in subclavian lines.


Decrease use of routine IVs and encourage PO intake.


Avoid using a femoral vein insertion site. Subclavian central line site is associated with lower infection rate than jugular.


Bundle to prevent CLABSIs includes hand hygiene, CHG skin prep for insertion of central lines, full barrier protection for insertion of central lines, daily assessment to remove unnecessary lines, insertion checklist.


Consider daily CHG baths in ICUs.


In the U.S., 50% decrease in CLABSI between 2014 and 2018.


Table E2 summarizes recommended strategies for prevention of catheter-related bloodstream infections (CR-BSI) in ICU patients.

View chapter on ClinicalKey

(Video) 2021 NHSN Training: Clarifications to 2021 Bloodstream Infection Definitions

Campylobacter jejuni and Campylobacter coli

Jumi Yi, Evan J. Anderson, in Principles and Practice of Pediatric Infectious Diseases (Fifth Edition), 2018

Bloodstream Infection

BSI due to C. jejuni is relatively rare and occurs in <1% of children with enteritis and mostly in malnourished children, patients with chronic debilitating illnesses or immunocompromising conditions, and elderly patients.40,60 C. jejuni or C. coli organisms account for 60% to 90% of blood isolates, followed by C. fetus in 8% to 15%. BSI can be transient and asymptomatic in normal hosts but severe in hosts who are immunosuppressed, with mortality of 10% to 15%.43,61–63 Most episodes of BSI occur in patients with diarrhea.

Three clinical manifestations of BSI are described: (1) cryptogenic BSI, which occurs as an isolated event that is self-limited or readily responds to antibiotics; (2) secondary BSI associated with focal infections such as meningitis, pneumonia, endocarditis, and thrombophlebitis; and (3) chronic BSI with relapses that can persist for several months (mostly in immunosuppressed patients).

View chapterPurchase book

Read full chapter


Kingella Species

Pablo Yagupsky, in Principles and Practice of Pediatric Infectious Diseases (Fifth Edition), 2018

Bloodstream Infections.

Bloodstream infection (BSI) without focus is the second most frequent presentation of pediatric K. kingae infections.14,18,32,33 In a large study, only one half of children with this condition had a body temperature of ≥39°C, and one third had a WBC count of <15,000 cells/mm3. Algorithms that rely on body temperature and WBC count to pursue BSI are not sensitive to detect K. kingae.32,64 A maculopapular rash, resembling disseminated neisserial infection, has been described in a few patients.44,65–67

View chapterPurchase book

Device-Related Infections

Samir S. Shah, ... Theoklis E. Zaoutis, in Comprehensive Pediatric Hospital Medicine, 2007


Bloodstream infections are the most common infections acquired by hospitalized children, accounting for 21% to 34% of all nosocomial infections in PICU patients.3-5 Most of these bloodstream infections occur as a consequence of intravascular catheterization.3 The attributable cost of these infections in PICU patients is approximately $39,000 per episode,6 and it is an increasingly common problem.

Infection rates are affected by many factors, including the patient's location, comorbid illnesses,7 and catheter type (Table 71-1) Nontunneled catheters appear to have the highest rate of infection, and totally implanted venous access devices have the lowest rate of infection.8

View chapterPurchase book

(Video) Bloodstream infections | Microbiology | Handwritten notes

Read full chapter



Kal Cave, Ian Gould, in Reference Module in Biomedical Sciences, 2021

3.4 S. aureus bloodstream infections including right-sided infective endocarditis

Bloodstream infection is also known as bacteremia. Daptomycin was licensed by the FDA in 2006 for the treatment of S. aureus bloodstream infection (including MRSA), with or without right-sided infective endocarditis (FDA, 2006).

The original trial of daptomycin for the treatment of S. aureus bloodstream infection was an open-label, randomized trial of 120 patients with proven S. aureus bloodstream infection who received treatment with 6mgkg−1 of daptomycin (Fowler et al., 2006). Outcomes were compared with 115 patients who received either vancomycin or a penicillinase-resistant penicillin (cloxacillin, nafcillin, or flucloxacillin), plus gentamicin 1mgkg−1 intravenously every 8 h. In the daptomycin treatment group, 17 patients had a definite diagnosis of endocarditis compared to 20 patients in the comparator group. 73 and 71 patients had a possible diagnosis of endocarditis respectively based on modified Duke criteria. Patients were excluded if they had a creatinine clearance of less than 30mLmin−1, known osteomyelitis, polymicrobial bacteremia, or pneumonia. Clinical success rates at the end of therapy using a modified intention to treat analysis were 62% in the daptomycin group and 61% in the comparator group, which met the predetermined criteria for noninferiority. Drug-related adverse events were comparable in both groups, however, there was a statistically significant increase in renal impairment in the comparator group when compared to the daptomycin group.

Since the original trial described above, there has been very limited high-quality clinical data regarding the use of daptomycin for S. aureus bloodstream infection or right-sided infective endocarditis. One retrospective cohort study looked at daptomycin versus vancomycin for the treatment of MRSA bloodstream infection in patients with impaired renal function (Weston et al., 2014). This study reviewed the data from one tertiary hospital between 2001 and 2011 and identified 50 adult patients who were treated with daptomycin for first episode of MRSA bloodstream infection. These patients were matched using propensity scoring to 100 patients who received vancomycin for treatment of the same condition. Of the patients treated with daptomycin, 27 (58%) had a glomerular filtration rate of less than 50mLmin−1 1.73m−2 compared with 51 (51%) of patients in the vancomycin group. The study concluded that they were unable to detect that renal impairment of any kind has a significant impact on the efficacy of daptomycin in the treatment of MRSA bacteremia. It is worth noting that the data from this study is very limited, given the small patient numbers and retrospective data collection. However, it also seems unlikely that higher-quality of data is likely to be forthcoming given how challenging it is to prospectively study a population with bloodstream infection or infective endocarditis.

See Section 9.2 for further details on the use of daptomycin to treat infective endocarditis.

View chapterPurchase book

Read full chapter


Infections in the Cancer Patient

Oscar Marchetti, ... Thierry Calandra, in Infectious Diseases (Fourth Edition), 2017


Bloodstream infections account for 80–90% of microbiologically documented infections (Figure 79-3) and for half of the febrile episodes for which a site can be identified (Figure 79-4). In primary bloodstream infections, the source remains unknown, but disrupted physio­logic barriers (i.e. mucous membranes of the gastrointestinal tract and skin) are the most likely portals of entry. Bacteria account for over 90% of bloodstream infections. A single micro-organism is implicated in the majority of the bloodstream infections; polymicrobial infections occur in approximately 5–10% of cases. Over the last 30 years, the epidemiology of single-organism bacteremia in neutropenic patients has changed and may vary from center to center (Figure 79-1). Today, gram-positive and gram-negative bacteria cause equal proportions of infections in many European centers.14 The most common gram-positives are coagulase-negative staphylococci, viridans streptococci, Staphylococcus aureus (proportion of MRSA highly variable among institutions) and enterococci. Among gram-negatives, E. coli, Klebsiella spp. and other Enterobacteriaceae are predominant, while P. aeruginosa has declined progressively (Box 79-1). In some countries, multiresistant ESBL-producing or Klebsiella pneumoniae carbapenemase (KPC)-producing gram-negatives have emerged as a frequent cause of infection in neutropenic patients.20,57 Bloodstream infections are potentially life-threatening. With the prompt administration of appropriate empirical antibiotics at fever onset, severe complications rarely occur today and mortality rates range between 1% and 3%.53 However, mortality as high as 60% was observed in patients infected with multidrug-resistant gram-negative bacteria due to delayed initiation of appropriate therapy.57

View chapterPurchase book

Read full chapter


(Video) Central Catheter-associated Bloodstream Infections - Richard L Oehler, MD


How serious is a bloodstream infection? ›

It is a life-threatening medical emergency. Sepsis happens when an infection you already have triggers a chain reaction throughout your body. Infections that lead to sepsis most often start in the lung, urinary tract, skin, or gastrointestinal tract.

What kind of infection gets in your bloodstream? ›

Septicemia, or sepsis, is the clinical name for blood poisoning by bacteria. It is the body's most extreme response to an infection. Sepsis that progresses to septic shock has a death rate as high as 50%, depending on the type of organism involved. Sepsis is a medical emergency and needs urgent medical treatment.

What happens when an infection reaches your bloodstream? ›

Septicemia is an infection that occurs when bacteria enter the bloodstream and spread. It can lead to sepsis, the body's reaction to the infection, which can cause organ damage and even death. Septicemia is more common in people who are hospitalized or have other medical conditions.

How long does a bloodstream infection last? ›

Early and aggressive treatment in a hospital intensive care unit increases the chances you'll survive sepsis. Most people can make a full recovery from mild sepsis with no lasting complications. With the right care, you can be feeling better in as little as a week or two.

What does an infection in the bloodstream feel like? ›

Early symptoms include fever and feeling unwell, faint, weak, or confused. You may notice your heart rate and breathing are faster than usual. If it's not treated, sepsis can harm your organs, make it hard to breathe, and mess up your thinking.

How do you treat a bloodstream infection? ›

  1. Antibiotics. Treatment with antibiotics begins as soon as possible. ...
  2. Intravenous fluids. The use of intravenous fluids begins as soon as possible.
  3. Vasopressors. If your blood pressure remains too low even after receiving intravenous fluids, you may be given a vasopressor medication.
19 Jan 2021

What are the chances of surviving a blood infection? ›

Sepsis may cause abnormal blood clotting that results in small clots or burst blood vessels that damage or destroy tissues. Most people recover from mild sepsis, but the mortality rate for septic shock is about 40%.

How common are bloodstream infections? ›

Bloodstream infections (BSI) represent 40% of cases of community-acquired (CA) and hospital-acquired (HA) sepsis and septic shock and approximately 20% of the ICU-acquired cases (Table 1).

What is the difference between sepsis and bloodstream infection? ›

Sepsis and bloodstream infections are 2 distinct but related entities, with sepsis requiring not only an infection but also a maladaptive host response and organ dysfunction. Understanding the differences between the 2 has important implications for treatment and prognosis.

What are the 5 signs of sepsis? ›

Signs and symptoms of sepsis
  • fever and/or chills.
  • confusion or disorientation.
  • difficulty breathing.
  • fast heart rate or low blood pressure (hypotension)
  • extreme pain.
  • sweaty skin.

Can an infection in the bloodstream be cured? ›

When diagnosed early, septicemia can be treated effectively with antibiotics. Research efforts are focused on finding out better ways to diagnose the condition earlier. Even with treatment, it's possible to have permanent organ damage.

What are 2 serious signs of infection? ›

Know the Signs and Symptoms of Infection
  • Fever (this is sometimes the only sign of an infection).
  • Chills and sweats.
  • Change in cough or a new cough.
  • Sore throat or new mouth sore.
  • Shortness of breath.
  • Nasal congestion.
  • Stiff neck.
  • Burning or pain with urination.

What does the beginning of sepsis feel like? ›

About sepsis

a high temperature (fever) or low body temperature. a change in mental state – like confusion or disorientation. slurred speech. cold, clammy and pale or mottled skin.

Can you have a blood infection without knowing? ›

It's clear that sepsis doesn't occur without an infection in your body, but it is possible that someone develops sepsis without realizing they had an infection in the first place. And sometimes, doctors never discover what the initial infection was.

What does sepsis pain feel like? ›

Weakness or aching muscles. Not passing much (or any) urine. Feeling very hot or cold, chills or shivering. Feeling confused, disoriented, or slurring your speech.

How long does it take for infection to show in blood? ›

You may be able to get early results within 24 hours of your blood tests. But you might need to wait 48 to 72 hours to learn what kind of yeast or bacteria is causing your infection.

What is the fastest way to cure a blood infection? ›

Healthcare professionals should treat sepsis with antibiotics as soon as possible. Antibiotics are critical tools for treating life-threatening infections, like those that can lead to sepsis.

What is the life expectancy after sepsis? ›

They concluded that septic patients have a high mortality rate after two years of hospital discharge compared to patients recovered from other diseases; the percentage of death ranged from 22% to 70%.

What blood test shows sepsis? ›

Peripheral blood cultures are useful for investigating the infectious etiology of sepsis and for managing appropriate antimicrobial treatment. Other tests, including CBC and chemistries, provide a baseline to assess therapeutic response.

Do you get hospitalized for blood infection? ›

Once a person is diagnosed with sepsis, she will be treated with antibiotics, IV fluids and support for failing organs, such as dialysis or mechanical ventilation. This usually means a person needs to be hospitalized, often in an ICU.

What are the 4 types of infections? ›

Infections are common. From ear infections and the flu to COVID-19, chances are we all have had at least one at some point. Viral, bacterial, fungal, and parasitic infections can all trigger sepsis.

Can you recover from sepsis in the blood? ›

Many people who survive sepsis recover completely and their lives return to normal. However, as with some other illnesses requiring intensive medical care, some patients have long-term effects.

What causes blood infections in elderly? ›

Most older patients with BSIs present “typically” with either fever or leukocytosis. The most common source of BSI in older patients is the urinary tract, and accordingly, Gram-negative organisms predominate. A significant part of these BSIs may thus be preventable by removal of unnecessary urinary catheters.

Does sepsis start suddenly? ›

The condition can arise suddenly and progress quickly, and it's often hard to recognize. Sepsis was once commonly known as “blood poisoning.” It was almost always deadly. Today, even with early treatment, sepsis kills about 1 in 5 affected people.

What happens right before sepsis? ›

High heart rate or weak pulse. Fever, shivering, or feeling very cold. Confusion or disorientation. Shortness of breath.

How does a person act when they have sepsis? ›

The early symptoms of sepsis include: a high temperature (fever) or, due to changes in circulation, a low body temperature instead. chills and shivering.

How quickly does sepsis spread? ›

Sepsis occurs unpredictably and can progress rapidly. In severe cases, one or more organ systems fail. In the worst cases, blood pressure drops, the heart weakens, and the patient spirals toward septic shock. Once this happens, multiple organs—lungs, kidneys, liver—may quickly fail, and the patient can die.

What is the most common type of blood infection? ›

The most common type of blood infection is known as sepsis, “a serious complication of septicemia. Sepsis is when inflammation throughout the body occurs. This inflammation can cause blood clots and block oxygen from reaching vital organs, resulting in organ failure.

What are the 5 causes of infection? ›

5 Common Ways Germs are Spread
  • Nose, mouth, or eyes to hands to others: Germs can spread to the hands by sneezing, coughing, or rubbing the eyes and then can be transferred to other family members or friends. ...
  • Hands to food: ...
  • Food to hands to food: ...
  • Infected child to hands to other children: ...
  • Animals to people:
4 Oct 2022

Is bloodstream infection the same as sepsis? ›

Sepsis and bloodstream infections are 2 distinct but related entities, with sepsis requiring not only an infection but also a maladaptive host response and organ dysfunction. Understanding the differences between the 2 has important implications for treatment and prognosis.

What are the early warning signs of sepsis? ›

The signs and symptoms of sepsis can include a combination of any of the following:
  • confusion or disorientation,
  • shortness of breath,
  • high heart rate,
  • fever, or shivering, or feeling very cold,
  • extreme pain or discomfort, and.
  • clammy or sweaty skin.
31 Aug 2017

What are the 3 deadliest blood diseases? ›

Human immunodeficiency virus (HIV), hepatitis B virus (HBV), and hepatitis C virus (HCV) are three of the most common bloodborne pathogens from which health care workers are at risk.

What antibiotic treats blood infections? ›

Examples include ceftriaxone (Rocephin), piperacillin-tazobactam, cefepime (Maxipime), ceftazidime (Fortaz), vancomycin (Firvanq), ciprofloxacin (Cipro), and levofloxacin (Levaquin). If you have mild sepsis, you may receive a prescription for antibiotics to take at home.

Where is the most common place to get an infection? ›

The most common places are:
  • the mouth and throat.
  • the skin.
  • the lungs.
  • the kidneys and bladder, especially if you have a catheter to drain urine from your bladder.
  • where a drip or central line goes in (cannula sites and PICC line sites)
  • wounds and where wound drains go in.
  • ulcerating tumours.
  • the bloostream.

Why do I keep getting infections in my body? ›

Some repeat infections, like pneumonia and bladder infections, may happen because of a genetic predisposition. That's an inherited tendency to get more infections than most people do. Structural issues. Repeat infections can also happen as a result of how your body is put together.

What are the 3 main ways an infection enters the body? ›

the air as droplets or aerosol particles. faecal-oral spread. blood or other body fluids. skin or mucous membrane contact.

How long can you live with sepsis in your blood? ›

When treatment or medical intervention is missing, sepsis is a leading cause of death, more significant than breast cancer, lung cancer, or heart attack. Research shows that the condition can kill an affected person in as little as 12 hours.

What is the first stage of sepsis? ›

Stage one: Systemic Inflammatory Response Syndrome (SIRS)

Sepsis can be hard to identify, but is typically denoted by a very high or low body temperature, high heart rate, high respiratory rate, high or low white blood cell count and a known or suspected infection.

Where does sepsis usually start? ›

While any type of infection — bacterial, viral or fungal — can lead to sepsis, infections that more commonly result in sepsis include infections of: Lungs, such as pneumonia. Kidney, bladder and other parts of the urinary system. Digestive system.


1. Cubicin To Treat Skin Infections and Blood Infections - Overview
2. lecture on blood stream infection
(GMCK Microbiology)
3. "Prevention of Catheter-Associated Bloodstream Infections" by Debra Morrow, RN for OPENPediatrics
4. 2016 NHSN - Secondary Bloodstream Infections
(Centers for Disease Control and Prevention (CDC))
5. 2019 NHSN Training - Central Line-associated Bloodstream Infection (CLABSI)
(Centers for Disease Control and Prevention (CDC))
6. Overview of Blood | Merck Manual Consumer Version
(Merck Manuals)
Top Articles
Latest Posts
Article information

Author: Tyson Zemlak

Last Updated: 12/07/2022

Views: 6556

Rating: 4.2 / 5 (63 voted)

Reviews: 94% of readers found this page helpful

Author information

Name: Tyson Zemlak

Birthday: 1992-03-17

Address: Apt. 662 96191 Quigley Dam, Kubview, MA 42013

Phone: +441678032891

Job: Community-Services Orchestrator

Hobby: Coffee roasting, Calligraphy, Metalworking, Fashion, Vehicle restoration, Shopping, Photography

Introduction: My name is Tyson Zemlak, I am a excited, light, sparkling, super, open, fair, magnificent person who loves writing and wants to share my knowledge and understanding with you.