As we wait for H7 to come back

https://www.newscientist.com/article/mg21829164.200-us-invokes-emergency-act-to-keep-h7n9-flu-at-bay.html#.UmUyniRQ25c But there is another problem: H7 flu is poor at stimulating immunity. Virologists at the European Flu Summit in Brussels last week told New Scientist...