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Canada’s Quebec said province discovers first case of new COVID-19 variant

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Vaccination plus infection offered most protection during Delta surge, U.S. study shows – CBC News

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Protection against the previously-dominant Delta variant was highest among people who were both vaccinated and had survived a previous COVID-19 infection, according to a report published Wednesday by the U.S. Centers for Disease Control and Prevention (CDC).

The report also found those who had previously been infected with COVID-19 were better protected against the Delta variant than those who were vaccinated alone, suggesting that natural immunity was a more potent shield than vaccines against that variant, California and New York health officials reported on Wednesday.

Protection against Delta was lowest among those who had never been infected or vaccinated, the CDC report continued.

“The evidence in this report does not change our vaccination recommendations,” Dr. Ben Silk of the CDC and one of the study’s authors told a media briefing.

“We know that vaccination is still the safest way to protect yourself against COVID-19,” he said.

The findings do not apply to the Omicron variant of the virus, which now accounts for 99.5 per cent of COVID-19 cases in the United States.

Study includes data from May to November

For the study, health officials in California and New York gathered data from May through November, which included the period when the Delta variant was dominant.

It showed that people who survived a previous infection had lower rates of COVID-19 than people who were vaccinated alone.

That represented a change from the period when the Alpha variant was dominant, Silk told the briefing.

“Before the Delta variant, COVID-19 vaccination resulted in better protection against a subsequent infection than surviving a previous infection,” he said.

In the summer and fall of 2021, however, when Delta became the predominant circulating iteration of the virus in the United States, “surviving a previous infection now provided greater protection against the subsequent infection than vaccination,” he said.

But acquiring immunity through natural infection carries significant risks. According to the study, by Nov. 30, 2021, roughly 130,781 residents of California and New York had died from COVID-19.

The analysis did not include information on the severity of initial infection, nor does it account for the full range of illness caused by prior infection.

One important limitation to the study was that it ended before administration of vaccine booster doses was widespread.

WATCH | Experts agree the science behind booster shots is sound:

The safe science behind COVID-19 booster shots

5 days ago

Duration 1:55

While some Canadians who have received their booster shots have later tested positive for COVID-19, medical experts agree that the science behind booster jabs is sound. 1:55

‘Clearly shows’ vaccines provide safest protection

Dr. Erica Pan, state epidemiologist for the California Department of Public Health, said in an email that the study “clearly shows” that vaccines provide the safest protection against COVID-19 and they offer added protection for those with prior infections.

“Outside of this study, recent data on the highly contagious Omicron variant shows that getting a booster provides significant additional protection against infection, hospitalization and death,” Pan said.

Silk said the CDC is studying the impact of vaccination, boosters and prior infection during the Omicron surge and expects to issue further reports when that data becomes available.

So far, Omicron has proven to evade some level of immunity from both vaccination and previous infection, but vaccines are still largely preventing serious illness and death.

An Israeli hospital on Monday also said preliminary research indicates a fourth dose of leading mRNA-based vaccines provides only limited defence against infection from the variant.

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COVID-19: Go-Vaxx mobile vaccination clinic to return to Haliburton County with 3 stops – Globalnews.ca

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Ontario’s GO-VAXX mobile vaccination clinic is making three stops in Haliburton County in the coming weeks, the Haliburton, Kawartha, Pine Ridge District Health Unit announced Wednesday.

The retrofitted GO bus will provide first, second and boosters doses of COVID-19 vaccinations to any eligible residents, including doses for children ages 5-11. Moderna will be provided to individuals 30 and older, unless they have a documented allergy to Moderna.

Read more:

Pfizer’s Paxlovid pill not a replacement for COVID-19 vaccine, officials say

All appointments must be booked in advance through the Provincial Booking System or by calling the Provincial Vaccine Contact Centre at 1-833-943-3900. Appointments can be booked starting at 8 a.m. the day before the clinic.

Clinics will run from 11 a.m. to 5 p.m.:

  • Saturday, Jan. 29 : A.J. LaRue Arena, 728 Mountain St., in Haliburton
  • Saturday, Feb. 5: Lloyd Watson Community Centre, 2249 Loop Rd., in Wilberforce
  • Saturday Feb. 12: A.J. LaRue Arena in Haliburton

“Being fully vaccinated with a booster dose has proven to be effective in preventing severe illness and hospitalization against the Omicron variant,” said Doreen Boville, health promoter with the health unit. “To ensure anyone needing a vaccine can get one, appointments are necessary for a smooth rollout.”

Individuals are asked to bring their Ontario health card. If you do not have a health card or your health card is expired, bring another form of government photo ID such as a driver’s license, passport, Status card, or birth certificate.

The health unit has appointments available at COVID-19 vaccination clinics being held throughout the region. A list of dates and times is available on the health unit’s www.hkpr.on.ca. Residents are also encouraged to check with local pharmacies or their primary health care providers for more opportunities to get vaccinated.

As of Tuesday afternoon, the health unit reported 822 active cases within its jurisdiction including 35 in Haliburton County.

© 2022 Global News, a division of Corus Entertainment Inc.

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Prior COVID-19 infection offered protection against Delta variant, but vaccines still best shield against the virus, study says – The Globe and Mail

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People who had previously been infected with COVID-19 were better protected against the Delta variant than those who were vaccinated alone, suggesting that natural immunity was a more potent shield than vaccines against that variant, California and New York health officials reported on Wednesday.

Protection against Delta was highest, however, among people who were both vaccinated and had survived a previous COVID infection, and lowest among those who had never been infected or vaccinated, the study found.

Nevertheless, vaccination remains the safest strategy against COVID-19, according to the report published in U.S. Centers for Disease Control and Prevention (CDC) Morbidity and Mortality Weekly Report.

The results do not apply to the Omicron variant of the virus, which now accounts for 99.5 per cent of COVID-19 cases in the United States.

“The evidence in this report does not change our vaccination recommendations,” Dr. Ben Silk of the CDC and one of the study’s authors told a media briefing.

“We know that vaccination is still the safest way to protect yourself against COVID-19,” he said.

For the study, health officials in California and New York gathered data from May through November, which included the period when the Delta variant was dominant.

It showed that people who survived a previous infection had lower rates of COVID-19 than people who were vaccinated alone.

That represented a change from the period when the Alpha variant was dominant, Silk told the briefing.

“Before the Delta variant, COVID-19 vaccination resulted in better protection against a subsequent infection than surviving a previous infection,” he said.

In the summer and fall of 2021, however, when Delta became the predominant circulating iteration of the virus in the United States, “surviving a previous infection now provided greater protection against the subsequent infection than vaccination,” he said.

But acquiring immunity through natural infection carries significant risks. According to the study, by November 30, 2021, roughly 130,781 residents of California and New York had died from COVID-19.

The analysis did not include information on the severity of initial infection, nor does it account for the full range of illness caused by prior infection.

One important limitation to the study was that it ended before administration of vaccine booster doses was widespread.

Dr. Erica Pan, state epidemiologist for the California Department of Public Health, said in an email that the study “clearly shows” that vaccines provide the safest protection against COVID-19 and they offer added protection for those with prior infections.

“Outside of this study, recent data on the highly contagious Omicron variant shows that getting a booster provides significant additional protection against infection, hospitalization and death,” Pan said.

Silk said the CDC is studying the impact of vaccination, boosters and prior infection during the Omicron surge and expects to issue further reports when that data becomes available.

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