What is the Difference Between Haemophilus Influenzae and Haemophilus Parainfluenzae?
🆚 Go to Comparative Table 🆚Haemophilus influenzae and Haemophilus parainfluenzae are both
On this pageWhat is the Difference Between Haemophilus Influenzae and Haemophilus Parainfluenzae? Comparative Table: Haemophilus Influenzae vs Haemophilus Parainfluenzae
Comparative Table: Haemophilus Influenzae vs Haemophilus Parainfluenzae
Haemophilus influenzae and Haemophilus parainfluenzae are two species of bacteria that belong to the Haemophilus genus and can cause various infections in humans. Here is a table highlighting the differences between the two:
Characteristic | Haemophilus influenzae | Haemophilus parainfluenzae |
---|---|---|
Gram-negative coccobacillus | Yes | Yes |
Fastidious organisms | Yes | Yes |
Typeable strains | Six types, including Types a-f | N/A |
Encapsulated, type B strain (Hib) | Yes | No |
Causes human colonization or infection | Yes | Yes |
Pathogenicity | Higher pathogenicity, causing acute bronchitis and exacerbations of chronic obstructive pulmonary disease (COPD) | Lower pathogenicity, less frequently associated with severe infections |
Biotypes | Classified into distinct biotypes based on ornithine decarboxylase, urease, and indole activities | Biotypes not well-defined |
Association with specific infectious disease problems | Linked to capsular serotype and antimicrobial resistance profiles | Less well-defined associations with specific infectious diseases |
Note that H. parainfluenzae is more challenging to classify and differentiate due to its lower pathogenicity and less well-defined associations with specific infectious diseases. Molecular typing techniques, such as whole-genome sequencing, are being developed to better understand and classify Haemophilus species.
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