prev next front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37  |review
What it take to make the vaccine?
The WHO Global influenza surveillance network makes recommendations for the formation of influenza vaccine each year. This is a rather complex process requiring surveillance, isolation of representative strain, antigenic and genetic analysis, serological studies.