U.S. health officials advise all Americans to get COVID-19 Booster jab Strengthen their protection amid increasing evidence that delta variants and vaccine effectiveness are declining.

“Recent data clearly shows that over time, protection against mild and moderate diseases has declined,” U.S. surgeon Dr. Vivek Murthy said on Wednesday.

Murthy said in a public briefing by the White House COVID-19 Response Team: “This may be due to weakened immunity and the strength of the widespread Delta variant.”

The plan, outlined by the director of the Centers for Disease Control and Prevention (CDC) and other top authorities, requires people to increase the dose eight months after the second injection of Pfizer or Moderna vaccine. Dosage may start in the week of September 20.

According to data from Johns Hopkins University, the number of cases, hospitalizations, and deaths in the United States has increased dramatically. In the past 28 days, 13,885 people have died of new coronary pneumonia, and 623,418 people have died since the pandemic began.

Health officials said that people who receive a single dose of Johnson’s vaccine may need additional injections. But they are waiting for more data and have not yet determined the details.

Officials said the master plan is waiting for the Food and Drug Administration to evaluate the safety and effectiveness of the third dose.Officials had Already recommended booster jab For people with weakened immune systems.

Health officials stated that it is “very clear” that the vaccine’s protective effect against infection will diminish over time, and now, as the highly infectious delta variant spreads rapidly, “we are beginning to see protection against mild and moderate diseases. Evidence of reduced protection.”

“According to our latest assessment, the current protective measures against serious illness, hospitalization and death may weaken in the next few months,” the official said in a joint statement issued by the Ministry of Health and Human Services.

Officials said that the United States has enough vaccine supplies to provide free initial injections and boosters to every American at 80,000 locations across the country.

But the decision raised concerns about the fairness of global vaccines, because the vast majority of the world’s population is still not vaccinated.

World Health Organization Request a suspension Use the COVID-19 vaccine booster at least by the end of September to enable at least 10% of the population in every country in the world to be vaccinated.

US officials said they will seek to expand their efforts to provide vaccines to other countries. The US government has signed a contract with Pfizer to distribute 500 million doses of its two-dose vaccine to other countries.

Officials say that so far, the United States has shipped about 100 million doses of vaccine to other countries. In recent days, new shipments of Pfizer vaccines have begun.

Officials said that US patient data shows that the vast majority of people who die from extreme cases of COVID-19 (now an average of 500 people per day) have not been vaccinated, which highlights the effectiveness of the vaccine and the need for people to be vaccinated.

“This is still an unvaccinated epidemic,” said Jeffrey Zients, head of the White House COVID-19 response team.

“We must protect the American people, and we must continue to do more and more work to vaccinate the world. Both are critical.”

CDC Director Dr. Rochelle Walensky said that the new data confirms that the vaccine protection against the Delta variant of the COVID-19 virus has been reduced.

A study in nursing homes in the United States showed that the vaccine effectiveness of the Delta variant dropped to 53%. An Israeli study showed that people who were vaccinated early in the pandemic have an increased risk of serious illness.

Dr. Anthony Fauci said that the data shows that people need higher levels of antibodies to resist the highly infectious Delta variant, so boosters are recommended.

“You don’t want to find yourself behind and catch up,” Fauci said.

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