What is the shelf life of any vaccine?

The shelf life of a vaccine simply means the time frame within which the vaccine leaves its best effect after proper use. A large population in india has received both doses of the covid vaccine. About four million children between the ages of fifteen and eighteen have also received the first dose of the vaccine. A piece of big news had emerged these days that whether the children did not get the expired dose of Covaxin. For this reason, the Ministry of health had to issue a clarification as well.

Terming these reports as baseless, the ministry said that only those medicines were given to the children which were in good condition. The ministry also said that the shelf life of these vaccines was extended from nine months to twelve months. Now, what is the shelf life of any vaccine? Let's know...

WHO Definition and Shelf Life of Vaccine!

According to WHO instructions, the shelf life of a vaccine simply means the time frame within which the vaccine leaves its best effect after proper use. Shelf life simply means calculating the expiry date of the vaccine.

Factors Behind the Shelf Life of Vaccines

These vaccines are made by mixing proteins, carbohydrates, lipids, dormant viruses, and many other things. All these ingredients help in increasing the immune system of the human body. In addition, they also help to make the vaccine clinically effective. Here the shelf life is decided by the producers and taken care of by the associated organizations. After a certain period of time, the ingredients in the vaccine may degrade and lose their effectiveness.

According to the World health Organization, the stability of the vaccine is to preserve its chemical, physical, microbiological properties by it. The period during which it is in its best form is the shelf life of the vaccine.