Hello doctor I had given first dose of influenza vaccine to my daughter on 17th Aug and 2nd dose was scheduled on 18th Sept. However she got viral fever on that date hence I couldn't give vaccine. As I've heard this 2 doses of influenza vaccines should be 4 weeks apart but now that I've missed that 4 weeks gap, can I still give the 2nd dose after waiting for 10 days (which will make it 6 weeks gap). Does the gap between these two doses should be 4 weeks strictly or minimum 4 weeks? Please answer.