Health officials announced the details of the study on Friday, which is the key to this week’s Centers for Disease Control and Prevention (CDC)’s decision to recommend that vaccinated people re-wear masks in parts of the United States where delta variants are exacerbating infections. verb: move.

The author said that the survey results indicate that the CDC’s mask guidelines should be expanded to include the entire country, even outside of hot spots.

These findings have the potential to overturn past ideas about how diseases spread. Previously, infected people who were vaccinated were considered to have low levels of the virus and were unlikely to pass it on to others. But new data shows that this is not the case with the delta variant.

To date, more than 900 cases have been reported in Provincetown (the coastal resort of Cape Cod, the county with the highest vaccination rate in Massachusetts).

The CDC report is based on approximately 470 cases of COVID-19 related to the Provincetown celebrations, which include intensive indoor and outdoor holiday events held in bars, restaurants, hotels, and rental houses.

Researchers tested some of them and found that the virus levels of fully vaccinated people and unvaccinated people were about the same.

Three-quarters of infections occur in fully vaccinated individuals. About 80% of people who are fully vaccinated have symptoms, the most common being cough, headache, sore throat, muscle aches, and fever.

Dr. Angela Rasmussen, a virologist at the University of Saskatchewan, said that in the report, the measures researchers used to assess how much virus an infected person was carrying did not indicate whether they had actually spread the virus to other people.

Watch | “If you are not vaccinated… your luck is about to run out,” the American doctor said:

Dr. Peter Hotez, co-director of vaccine development at Texas Children’s Hospital in Houston, emphasized that people who have not been vaccinated are at risk of COVID-19 delta variants. 6:55

CDC officials said that more data will be released soon. They are tracking breakthrough cases as part of larger studies that involve tracking tens of thousands of vaccinated and unvaccinated people across the country over time.

at the same time, Internal documents on breakthrough infections and delta variants It indicates that the CDC may be considering changes to the country’s recommendations on how to fight the coronavirus, such as recommending masks for everyone and requiring doctors and other health workers to be vaccinated.

According to documents referring to the Provincetown case, the delta variant was first discovered in India, and it causes infections that are more contagious than the common cold, flu, smallpox, and Ebola, and are as contagious as chickenpox.

These documents, first obtained by the Washington Post, stated that the COVID-19 vaccine is still very effective against delta variants in preventing serious illness and death.

What happened in canada

• Alberta cancels remaining COVID-19 agreements Irritate Between doctors.

• Manitoba sends 5,500 doses of AstraZeneca-Oxford vaccine Back to Ottawa.

What is happening around the world

According to reports, as of Friday, more than 196.6 million COVID-19 cases have been reported worldwide. Johns Hopkins University. According to reports, more than 4.1 million people have died.

exist AsiaAs Tokyo hosts the Olympics, the number of infections hit a record high, and Japan on Friday expanded the coronavirus emergency to four regions except Tokyo.

Watch | WHO head applauds handling COVID-19 risk at Tokyo 2020 Olympics:

WHO Director-General Tan Desai said that with the surge of new cases, Japan and the International Olympic Committee have done their best to minimize the risk of COVID-19 at the 2020 Tokyo Olympics. Tokyo recorded record growth for three consecutive days. 0:58

inside America, France is deploying military doctors and intensive care units to the French Caribbean to relieve hospitals facing a surge in coronavirus. Military aircraft also brought some critically ill patients to the French mainland for treatment.

exist AfricaThe World Health Organization chapter in the region said that Ivory Coast tripled its daily dose of COVID-19 vaccine in three months.

exist Europe, Germany will require people entering the country to test negative for the coronavirus if they have not been vaccinated or have recently recovered from COVID-19.