Epidemic situation of emerging influenza virus A/H1N1 in 2009 pandemic and the prevention/control measures

Author: Yi-Fang HAN ¹
Author Information

1. Department of Epidemiology
Publication Type:Journal Article
Keywords: Epidemiology; H1N1 subtype influenza A virus; Universal precautions
From: Academic Journal of Second Military Medical University 2010;30(6):610-612
CountryChina
Language:Chinese
Abstract: Since the first reported case of swine influenza A in Mexico, a total of 15 510 cases have been confirmed in 53 countries by May 29, 2009. On April 29, 2009, the World Health Organization (WHO) raised its pandemic alert from grade 4 to grade 5. The virus is described as a new subtype of A/H1N1 and is not detected in pigs or humans previously. The virus is sensitive to oseltamivir and zanamivir, but resistant to amantadine and rimantadine. The genetics of the virus are so novel that humans are unlikely to have much immunity to it. The virus can transmit from human to human; therefore it is necessary to enforce quarantine measure for close contactors because the virus transmits during latency. Precaution methods like covering noses and mouths with a tissue when coughing or sneezing can reduce the transmission opportunity. Hands should be washed frequently with soap, especially after coughing or sneezing. Public places with ventilation conditions, personal health behavior and health condition are critical for the prevention and control of this epidemic.