Patchy Pig Monitoring May Hide Flu Threat
GLOBAL - Public-health experts are warning that a lack of surveillance may be allowing the 2009 pandemic H1N1 flu virus to go undetected in pigs. This raises the risk that the virus could circulate freely between humans and pigs, making it more likely to re-assort into a deadlier strain, they say.
17 June 2009
2 minute read
