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Human Parainfluenza Viruses
2011-01-05 16:00:36

Human parainfluenza viruses, belonging to the paramyxovirus family, are a group of four distinct serotypes of enveloped single-stranded RNA viruses. They are the second most common cause of lower respiratory tract infection in younger children. Many times the host has repeat infections throughout life with symptoms that may include upper respiratory tract illness or more commonly, a cold...

Word of the Day
deuteragonist
  • A person in a secondary role, specifically the second most important character (after the protagonist).
The word 'deuteragonist' comes from a Greek word meaning 'an actor of second-class parts'.
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