Flu vaccination is integral for people at high risk of serious influenza complications, and for caregivers and cohabitants of high risk individuals.
The WHO particularly recommends seasonal flu injections for pregnant women, children aged 6-59 months, elderly, individuals with specific chronic medical conditions and health-care workers.
The flu vaccine contains three strains expected to be active during the current flu season, and is effective in 70 - 90% of cases.
It is recommended that all except those severely allergic to eggs (see: Who should not be vaccinated) should opt for vaccination every autumn.