VIRUS-HOST INTERACTIONS AND THE UNUSUAL AGE AND SEX DISTRIBUTION OF HUMAN CASES OF INFLUENZA A(H7N9) IN CHINA, APRIL 2013

CHINA - A new scientific paper 

from Canada highlights from the 

available surveillance findings an

 unexpected age/sex distribution 

of reported influenza A(H7N9) 

cases. 
The age range spans from 2 to 91 

years but two-thirds of influenza 

A(H7N9) cases have been 50 years 

of age or older and two-thirds 

have been male.