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For months, questions have linked when peoplemight need boosters Keeping their CVIV-19 vaccines effective. The conversation took new emergencies with the arrival of the variant of very contagious delta, even if the initial studies suggest that the original blows are alwaysWork against the last strain. But as more data, the federal government stated that it recommends shots based on new studies showing how much you are protected from COVID, after being vaccinated for months.

RELATED:If you have this vaccine, you can be more protected against Delta.

During a press conference on August 18, the main health leaders of the Bidge Administration announced that it would startoffering booster shots Covid-19 Beginning of the week of September 20 to all the Americans previously vaccinated. The administration cited three separate studies released by the disease control and prevention centers (CDC) on the same day in its weekly report as proof in its decision. When the search data is combined, it shows that current vaccines are about55% effective against infection With the virus, 80% effective against symptomatic infection and 90% or more effective against hospitalization as a result of COVID-19,Ellie Murray, an epidemiologist at the University of Boston, saidThe New York Times.

In one of the studies published by the CDC,New York State Data Collected between May 3rd and July 25 was analyzed, marking the period when the Delta variant increased to become the dominant strain of the virus. The results found that theThe effectiveness of vaccines has fallen 91.7% to 79.8% during the study, while hospitalizations are particularly the same. The analysis also shown that about 20% of new cases and 15% of new disease hospitalizations were revolutionary infections reported in fully vaccinated persons.

In another of the studies,Residents of 3,862 retirement homes were analyzed from March 1st to May 9th, whereas Apha was the dominant variant. Later, about 15,254 nursing homes were analyzed from June 21st to August 1, when the Delta variant had resumed. Although the study did not measure the protection against serious illnesses, the results revealed that the efficacy rates against CVIV-19 infections have dropped from 75 to 53%. The authors of the study concluded that "additional doses of Vaccine Covid-19 could be considered for the residents of the nursing home and long-term care centers".

RELATED:You have 60% less likely to get sick of the delta variant if you do that.

The third study published by the CDC analyzed patient data in 21 hospitals of 18 states. The results revealed that vaccines were86% effective against hospitalization From the virus even when the variant of Delta had increased to domination. Adults who were not immunocompened have seen even higher protection at 90%.

However, the release of the studies quickly fueled the arguments of certain health experts against the decision of the Bidge Administration, with a lot of things saying that the data about them had not suggested to delete additional shots for all members of the population. "These numbers are actually very good," said MurrayThe temperatureAdding: "The only group that these data would suggest boosters, for me, is immunocomized."

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Others agreed with Murray's analysis. "These data support additional doses of vaccine to highly immunocompromised residents and residents of the retirement home, not the general public,"Céline Gounder, MD, an infectious disease specialist at the Bellevue Hospital Center and a former Pandemic Advisor to Administration, saidThe temperature.

Nevertheless, others emphasized that boosters were far from the sole protection against the virus that could greatly contribute to maintaining vulnerable portions of the safe population, such as theUse of facial masks andsocial distancing. "As we publish the brakes on these other non-pharmaceutical interventions, we can see more cases"Maria SundaramPhD, an infectious epidemiologist and sickness at the University of Public Health of Dalla Lana at the University of Toronto. The Washington Post . "Vaccines are very very useful, but they are not the end - all, benefiting from the prevention of COVID-19."

RELATED: This vaccine protects you the least of the Delta variant, a new study indicates .