|Health ministry to offer children new polio vaccine. — VNS File Photo
HA NOI (VNS) — The national extended programme on immunisation (EPI) will offer IPV vaccines to immunise children aged five years against polio, in June 2016, according to the Ministry of Health.
The IPV vaccine will be administered alongside the injections of the OPV vaccine for children who are aged two, three and four months, which also immunises against polio.
OPV vaccine currently has three doses that help children avoid three types of virus (type 1, type 2, and type 3). The virulence in the OPV vaccine has been reduced so that the vaccine would not be harmful to children while activating the immune system against polio.
However, the latest research from the World Health Organisation shows that virus type 2 in OPV vaccine might be the cause of some cases of acute flaccid paralysis after its use in several countries.
"Consequently, we will exclude virus type 2 from OPV vaccine and administer the new IPV vaccine injections for children aged five months," Prof Dang Duc Anh, director of the national institute of hygiene and epidemiology said.
The IPV is an inactivate vaccine that contains antigens from dead polio viruses.
Viet Nam controlled the spread of polio in 2000 thanks to the deployment of polio vaccines in the EPI.
However, the disease may resurface if the children do not receive vaccinations in time. — VNS