Back in 13.04.13 I mentioned we still had a few days to see if there was any impact based on the diagnostic testing lag of 10-12 days. Dr Kelso of the WHO influenza-A team thinks the drop and the market closures could be linked.
Market closure the key?
Is the closure of Shanghai's wet animal markets to thank for the precipitous drop in H7N9 cases from Shanghai from around mid-April?