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• Glossary Glossary  Why isn't ARS a certainty? Mar 7, 1997
Rick, I'm curious as to why HIV acute retroviral syndrome
doesn't occur closer to 100% of the time, or why the severity of
it varies so much from person to person? In chicken pox for
example, the guy always gets rashes and always gets a fever
after a roughly 2 week incubation period. Initially, isn't HIV
replicating enough to always cause some sort of reaction, like a
fever to occur? What other factors could cause this wide range
of severity in HIV ARS? Thanks.  Response from Mr. Sowadsky  Hi.
Thank you for your question. Nothing in medicine is ever 100%.
All of our bodies are different, and all respond differently to
various diseases.