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Microbes of Respiratory Infections: Introduction, List of Microbes, and Keynotes

Introduction for Microbes of Respiratory Infections

The respiratory tract is a common site of infection since it comes in direct contact with the physical environment and is exposed to airborne microbes where a human takes about 20,000 breaths each day on average. Respiratory tract infection is of type upper and lower respiratory tract infection. Viruses and bacteria are the common etiological agents of b lower respiratory infections. Most cases of bronchitis and bronchiolitis are due to viruses.

Fig. Microbes of Respiratory Infections

List of Microbes of Respiratory Infections

The list of common Microbes of Respiratory Infections is as follows-

S. NoMicrobes (bacteria)
1.Staphylococcus aureus
2.Streptococcus pneumoniae
3.Streptococcus pyogenes
4.Streptococcus agalactiae
5.Pseudomonas aeruginosa
6.Haemophilus influenzae
7.Klebsiella species
8.Mycobacterium tuberculosis
9.Corynebacterium diphtheriae
10.Mycoplasma pneumoniae
11.Atypical mycobacteria
12.Neisseria meningitides
13.Bordetella pertussis
Virus (Microbe)
1.Influenza virus
2.Parainfluenza virus
3.Adenovirus
4.Rhinovirus
5.Epstein Barr Virus
6.Echovirus
7.Respiratory syncytial virus
8.Measles virus
9.Varicella zoster virus
Fungi
1.Candida albicans
2.Aspergillus species
3.Cryptococcus neoformans
4.Histoplasma capsulatum
5.Blastomyces dermatitidis
6.Coccidioides immitis
7.Pneumocystis jirovecii
Parasites
1.Paragonimus westermani
2.Clonorchis sinensis
3.Ancylostoma duodenale
4.Ascaris lumbricoides
Table: Common etiological agents of respiratory infections

Keynotes

  • The most common bacteria causing upper respiratory tract infections (URTIs) are S. pneumoniae, H. influenzae, Moraxella catarrhalis, S. pyogenes, and Mycoplasma pneumoniae.
  • Syncytial viruses (RSV), adenoviruses, influenza, and parainfluenza are the common viral pathogens of upper respiratory tract infections.
Medical Lab Notes

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