peramivir failed in a clinical trial, page-11

The data also suggests that the virus may not be slowed by summer temperatures in temperate countries. However, it spreads slowly enough to respond to the "social distancing" measures used in Mexico.


The Mexican data show cases of pneumonia – a proxy measure for severe flu – soared in April, mainly in Mexico City. April temperatures there range between 11° and 26 °C, climbing higher than the summer average in London, UK.

The data shows that a disproportionate number of people between 15 and 54 were hospitalised for severe pneumonia in April this year compared to April for the past three years in Mexico.


http://www.newscientist.com/article/dn17100-warm-weather-may-not-halt-swine-flu.html