Bacterial pneumonia causes: Difference between revisions
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==Causes== | ==Causes== | ||
=== | ===Microorganisms=== | ||
<ref name="pmid30020693">{{cite journal| author=| title=StatPearls | journal= | year= 2021 | volume= | issue= | pages= | pmid=30020693 | doi= | pmc= | url= }} </ref> | <ref name="pmid30020693">{{cite journal| author=| title=StatPearls | journal= | year= 2021 | volume= | issue= | pages= | pmid=30020693 | doi= | pmc= | url= }} </ref> | ||
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=== Causes of Nosocomial and Ventilator Associated Pneumonia === | ===Causes of Nosocomial and Ventilator Associated Pneumonia=== | ||
<ref name="pmid30571062">{{cite journal| author=| title=StatPearls | journal= | year= 2021 | volume= | issue= | pages= | pmid=30571062 | doi= | pmc= | url= }} </ref> | <ref name="pmid30571062">{{cite journal| author=| title=StatPearls | journal= | year= 2021 | volume= | issue= | pages= | pmid=30571062 | doi= | pmc= | url= }} </ref> | ||
* ''[[Staphylococcus aureus]] (MRSA)'' | |||
* ''[[Streptococcus]] species'' | *''[[Staphylococcus aureus]] (MRSA)'' | ||
* | *''[[Streptococcus]] species'' | ||
* ''[[Escherichia coli]]'' | *''[[Pseudomonas aeruginosa]]'' | ||
* ''[[Klebsiella]] pneumoniae'' | *''[[Escherichia coli]]'' | ||
* ''[[Enterobacter]]'' species | *''[[Klebsiella]] pneumoniae'' | ||
* ''[[Acinetobacter spp|Acinetobacter]]'' species | *''[[Enterobacter]]'' species | ||
*''[[Acinetobacter spp|Acinetobacter]]'' species | |||
=== Demographics === | |||
{| class="wikitable" | |||
|+ | |||
! | |||
!Most common organism | |||
|- | |||
|Neonates (<4 weeks old) | |||
|''Group B streptococci, E coli'' | |||
|- | |||
|Children (4 weeks - 18 years) | |||
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|- | |||
|Adults (18 - 40 years) | |||
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|- | |||
|Adults (40 - 65 years) | |||
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|- | |||
|Elderly (>65 years) | |||
| | |||
|- | |||
|HIV Infected Patients | |||
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<br /> | <br /> | ||
Revision as of 07:29, 3 January 2022
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Bacterial pneumonia Microchapters |
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Bacterial pneumonia causes On the Web |
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American Roentgen Ray Society Images of Bacterial pneumonia causes |
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Risk calculators and risk factors for Bacterial pneumonia causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Arooj Naz
Overview
Bacterial pneumonia may be due to a variety of underlying causes. The microorganisms responsible are divided into Typical and Atypical. Typical bacteria often result in a classic pneumonia whereas atypical bacteria lead to a much milder presentation often referred to as "walking pneumonia". These patients appear near normal but have extensive findings on chest x-ray.
Causes
Microorganisms
| Typical Pneumonia | Atypical Pneumonia |
|---|---|
| Streptococcus pneumoniae | Legionella |
| Staphylococcus aureus | Mycoplasma pneumoniae |
| Haemophilus influenzae | Chlamydia pneumoniae |
| Group A streptococci | Chlamydia psittaci |
| Moraxella catarrhalis | |
| Anaerobes and aerobic gram-negative bacteria |
Causes of Nosocomial and Ventilator Associated Pneumonia
- Staphylococcus aureus (MRSA)
- Streptococcus species
- Pseudomonas aeruginosa
- Escherichia coli
- Klebsiella pneumoniae
- Enterobacter species
- Acinetobacter species
Demographics
| Most common organism | |
|---|---|
| Neonates (<4 weeks old) | Group B streptococci, E coli |
| Children (4 weeks - 18 years) | |
| Adults (18 - 40 years) | |
| Adults (40 - 65 years) | |
| Elderly (>65 years) | |
| HIV Infected Patients |