[Group Y meningococci as respiratory pathogens (author's transl)]

Area of Science:

• Microbiology
• Pathology
• Infectious Diseases

Background:

• Neisseria meningitidis serogroup Y is recognized for causing meningitis and septicemia.
• However, its role as a respiratory pathogen is often underestimated.
• Meningococcal infections can present with diverse clinical manifestations.

Purpose of the Study:

• To report a case of peracute fatal septicemia caused by serogroup Y meningococci.
• To investigate the post-mortem findings associated with this infection.
• To discuss the potential association between meningococcal and respiratory viral infections.

Main Methods:

• Case report of a patient with fatal septicemia.
• Post-mortem examination including gross pathology of respiratory tissues.
• Literature review on meningococcal infections and viral respiratory co-infections.

Main Results:

• The patient presented with peracute fatal septicemia due to serogroup Y meningococci.
• Post-mortem examination revealed hemorrhagic lesions in the pharyngeal, laryngeal, and tracheal mucosae.
• Evidence of early pneumonia and pleurisy was observed.

Conclusions:

• Serogroup Y meningococci can act as significant respiratory pathogens.
• Fatal septicemia can involve severe respiratory tract lesions.
• Further investigation into the interplay between meningococcal and viral respiratory infections is warranted.