Virology: Selected Viral Diseases of Humans
Major respiratory viruses: pneumotropic diseases
Rhinoviruses, coronaviruses, adenoviruses
Rhinovirus
chief cause of common cold
transmitted via airborne respiratory drops
thrive in lower temps
Symptoms
adults/older children: little to no fever
children: fever of 100-102
Complications: wheezing in children w/ asthma
Influenza Virus
Symptoms: Sudden high fever
Complications:
Secondary bacterial pneumonia
Reyes syndrome: encephalitis, fatty liver degeneration
50% mortality
New strain yearly
Influenza A
extremely contagious
annual
cause of most epidemics
Reservoir: humans, pigs, birds
Influenza B
annual
less common than type A
similar to type A
reservoir: humans
Influenza C
Reservoir Humans