CORONA VIRUSE HISTORY

CORONA VIRUSE
Introduction:
SevereAcute respiratory syndrome is a disease caused by Human coronavirus (HCOV) which is respiratory tract illness.
Symptoms;
Fever followed by rapidly Progressive respiratory comprise key complex of signs of symptoms from which syndrome derives its name.
It is a life threatening and rapidly progressing form of pneumonia.
Cause;
SARS is caused by coronavirus (HCoV – SARS).
It is enveloped RNA virus. 
Single stranded Positive sense virus. 
A Helical nucleocapsid & spike proteins are present. Pleomorphic in nature, 120 – 160 nm in diameter.
Classification
Family: Coronaviradae 
Genus: Coronavirus 
Sub – Genus: Torovirus 
Order: Nidovirales (Nested Virus) 
Group: Group IV of HCoV Specie: 
Sars coronavirus (HCoV)
Name corona → latin word solar corona (crown like)
HISTORY OF SARS
Jimline on an Outbreak:
 First case of SARS (HCOV) was reported on NOV 16 2002 in Guangdong Province of China. Atypical Pneumonia was observed in that patient.
On Feb 26, 2003 First case of unusual Pneumonia with SARS was reported in a French patient at Hanoi, Vietnam.
On Feb 28, 2003 WHO officer carlo Urbani examines an American businessman with unknown form of Pneumonia in French hospital in Hanoi, Vietnam.

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