Coronavirus: What’s happening in Canada and around the world on July 30

Health officials on Friday released details of this research, which was central to this week’s decision by the Centers for Disease Control and Prevention (CDC) to recommend that vaccinated people return to wearing masks indoors in parts of the United States where the delta variant is causing increased infection; storms.

The authors said the findings suggest that CDC mask guidelines should be expanded to include the entire country, even outside of the hot spots.

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

An outbreak in Provincetown — a beachfront tourist spot on Cape Cod, in the county with the highest vaccination rate in Massachusetts — has so far seen more than 900 cases.

The CDC report is based on about 470 COVID-19 cases linked to the Provincetown festivities, which included crowded indoor and outdoor holiday events at bars, restaurants, guest houses and rental homes.

The researchers tested some of them and found about the same level of virus in those who were fully vaccinated and those who were not.

Three-quarters of the infections were in fully vaccinated individuals. Among those fully vaccinated, about 80 percent experienced the most common symptoms of cough, headache, sore throat, muscle aches and fever.

University of Saskatchewan virologist Dr. Angela Rasmussen said the procedure the researchers used in the report to assess how much virus an infected person is carrying does not indicate whether they are actually transmitting the virus to other people.

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

Peter Hotez, co-director of vaccine development at Texas Children’s Hospital in Houston, emphasized the risks unvaccinated people face against the delta variant of COVID-19. 6:55

More data is coming, officials from the Centers for Disease Control and Prevention say. They’re tracking the breakouts as part of much larger studies that include following tens of thousands of vaccinated and unvaccinated people across the country over time.

Meanwhile, internal documents related to superinfection and the delta variant suggest that the CDC may consider other changes to advice on how the nation fights the coronavirus, such as recommending masks for everyone and ordering vaccinations for doctors and other health workers.

The delta variant, first discovered in India, causes infections more contagious than the common cold, flu, smallpox and the Ebola virus, and is as contagious as chickenpox, according to documents citing the Provincetown cases.

The documents, first obtained by The Washington Post, indicate that COVID-19 vaccines are still highly effective against the delta variant in preventing serious illness and death.

What is happening in Canada

• Alberta’s cancellation of the remaining COVID-19 protocols is causing outrage among clinicians.

• Manitoba is sending 5,500 doses of AstraZeneca-Oxford vaccine to Ottawa.

What is happening around the world

As of Friday, more than 196.6 million cases of COVID-19 have been reported worldwide, according to Johns Hopkins University. More than 4.1 million deaths have been reported.

in a AsiaJapan on Friday expanded its state of emergency over the coronavirus to four other regions in addition to Tokyo after a record spike in infections as the capital hosts the Olympic Games.

Watch | WHO chief praises handling of COVID-19 risks in Tokyo 2020:

The Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, said that Japan and the International Olympic Committee have done their best to reduce the risks posed by COVID-19 at the Tokyo 2020 Olympics as new cases of infection rise. Tokyo recorded a record increase for three consecutive days. 0:58

In the Americas, France is deploying military medics and intensive care units to the French Caribbean to relieve hospitals facing an increase in the Corona virus. Military aircraft are also transporting some patients in critical condition to the French mainland for treatment.

in a Africa, Ivory Coast has tripled its daily administration of COVID-19 vaccine doses in three months, says the WHO’s regional branch.

in a EuropeGermany 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.