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Maybe THIS explains it? See: https://www.thestar.com/news/world/...y-delta-variant-than-previously-believed.htmlI wonder what is prompting such a rise after days of decline in cases.
Why do I get the feeling that Toronto will feel the brunt of the emergency brake in the next couple weeks.
The highly transmissible delta variant is a more formidable foe than previously believed, largely due to its ability to infect and be spread by people who are fully vaccinated, according to data gathered by the Centers for Disease Control and Prevention.
A confidential document prepared by the agency cites evidence from a recent outbreak in Massachusetts involving at least 145 people who were infected with the delta variant, which was first detected in India. In the Massachusetts outbreak, the viral loads of the 80 people who were vaccinated were essentially the same as the viral loads of the 65 people who were not vaccinated.
The CDC document also cites reports about so-called breakthrough cases in India. The viral loads of vaccinated people who nonetheless became infected with delta were higher than the viral loads of vaccinated people who were infected with other coronavirus strains, those reports found.
Some of the data in the document was described Tuesday by CDC Director Dr. Rochelle Walensky when she announced new guidance regarding the use of face masks. In parts of the country where coronavirus transmission rates are “substantial” or “high,” everyone — regardless of vaccination status — should wear face coverings when they’re in indoor public spaces, the agency now says.
The confidential document was obtained by the Washington Post and posted on its website.