what is ipv vaccine
The IPV vaccine is the inactivated polio vaccine, a shot that protects against poliomyelitis (polio) using killed poliovirus, so it cannot cause polio.
What is the IPV vaccine?
- IPV stands for inactivated poliovirus vaccine.
- It contains poliovirus types 1, 2, and 3 that have been killed (inactivated), so they cannot replicate or revert to a disease‑causing form.
- It is given as an injection in the arm or leg, usually by a trained health worker.
In simple terms: IPV teaches your immune system to fight polio without ever giving you a live virus.
How does IPV work?
- After the shot, your body makes antibodies in the blood against all three poliovirus types.
- These antibodies block the virus from reaching the central nervous system and prevent paralysis if you are exposed in the future.
- IPV mainly gives strong blood (systemic) immunity rather than high levels of intestinal immunity.
Effectiveness and safety
- IPV is highly effective: two doses protect about 90% of people, and three or more doses protect at least 99% from paralytic polio.
- It is considered one of the safest vaccines in use, with no evidence of serious systemic reactions in routine use.
- Because the virus is killed, IPV cannot cause polio.
Who gets IPV and when?
Typical routine childhood schedule (can vary by country):
- 1st dose: 2 months of age.
- 2nd dose: 4 months.
- 3rd dose: 6–18 months.
- 4th dose (booster): 4–6 years.
Many polio‑free, industrialized countries now use IPV only, instead of oral polio vaccine (OPV), because OPV carries a very small risk of vaccine‑derived polio while IPV does not.
Why is IPV important today?
- Polio is now rare in many parts of the world, but it still exists and can be imported into polio‑free areas.
- Vaccination helps maintain community protection and prevents new outbreaks of paralysis.
Information gathered from public forums or data available on the internet and portrayed here.