Seasonal Effects
For a long time, H. aegyptius has been known to cause seasonal epidemics of acute purulent conjunctivitis (minor cases of pink eye). The harsher effects of Hemophilus aegyptius that typically manifest themselves in Brazilian Purpuric Fever are typically seen during the summer months with few cases of BPF reported during the winter months. Bengtson, while studying H. aegyptius in Georgia, reported that the majority of cases of acute conjunctivitis occurred during the breeding season of the eye gnat, Hippelates pusio.
Read more about this topic: Haemophilus Influenzae Biogroup Aegyptius
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