Washington- The U.S. Food and Drug Administration (FDA) on Thursday gave the green signal for people with weak immune systems (Compromised immune systems) to use booster doses of the Corona vaccine of Pfizer nd Moderna.

In fact, in view of the growing threat of delta variants of the Coronavirus, some other countries, such as Israel and Germany, have planned to administer booster doses of the vaccine to people or have started applying the third dose. The aim is to avoid major disturbances. Scientists still have different opinions about the widespread use of boosters of the coronavirus vaccine for people without any disease. The reason behind this is that there is no evidence of the benefits of the booster. Pfizer has said that the vaccine it has created in conjunction with biotech. It becomes less effective over time.

Pfizer cited a study that the dose, which is up to 96 percent effective during vaccination, comes down to 84 percent in four months. Moderna has also said that a booster dose is required. Especially since the delta variant is infecting fully vaccinated people.

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