The Flu Shot: Answers to the Questions Patients Ask Most
No, the flu vaccine cannot give you influenza. Here is what it does, who needs it most and when to take it.

Influenza vaccination prevents a large share of hospital admissions in older adults and people with chronic disease, yet uptake in India remains low, largely because of avoidable misconceptions.
Why the vaccine is annual
Circulating influenza strains change each year and the vaccine composition is updated to match them. Protection also declines over months, so last year's dose is not enough for this season.
Who benefits most
- Adults over 60 and children between 6 months and 5 years
- Pregnant women at any stage
- People with diabetes, asthma, COPD, heart, kidney or liver disease
- Healthcare workers and carers of high-risk family members
Common misconceptions
- It cannot cause influenza — the injectable vaccine contains no live virus
- Mild arm soreness or a day of tiredness is a normal immune response
- It does not prevent every cold — many winter illnesses are other viruses
- An egg allergy is rarely a barrier; discuss it rather than skipping the vaccine
Key takeaways
- Take it annually, before the seasonal peak
- The injectable vaccine cannot cause influenza
- Highest value in over-60s, pregnancy and chronic disease
- Mild soreness for a day is expected
This article is general health information and does not replace a consultation. Treatment decisions depend on your history, examination and reports. For medical emergencies, visit the nearest emergency department.

