Epidemic cerebrospinal meningitis
It is usually caused by Meningococcus Weichselbaum. The source of infection is ill person or carrier. Meningococcal infection can manifests as suppurative meningitis, asymptomatic bacterio – carriage, nasopharyngitis, arthritis, meningococcemia.
The entrance is mucose membrane of pharynx and nose. Meningococcal infection can be transmitted by air drops or contact. In most instances the spread of meningococcus is haematogenous. Usually this disease is observed in winter and spring. Meningococcus is instable at high temperature, humidity and day light.