Enveloped, positive-sense single-stranded RNA viruses with nucleocapsid
Very common cause of upper respiratory infection, especially during fall and winter, and some diarrhea in pediatric patients
Emerging pathogen for respiratory disease outbreaks
Probably originated from bats, then spread to other mammalian hosts
SARS-CoV – Himalayan palm civets
MERS-CoV – Dromedary camels
SARS-CoV-2 – Suspected to be from pangolins
SARS-CoV – Himalayan palm civets
MERS-CoV – Dromedary camels
SARS-CoV-2 – Suspected to be from pangolins
MERS-CoV
SARS-CoV
SARS-CoV-2 (COVID-19)
Coronavirus
Rhinovirus: most common cold virus.  Causes around 40% colds.
Hantavirus
as opposed to Coronavirus, this causes cold in other seasons besides winter.
Arbovirus
Rhinovirus is NOT encapsulated as opposed to Coronavirus.
Coxsackie virus
respiratory syncytial virus 