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Pfizer, Moderna COVID-19 vaccines highly effective even after first shot in real-world use, U.S. study finds – Financial Post

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The risk of infection fell 90% by two weeks after the second shot

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COVID-19 vaccines developed by Pfizer Inc with BioNTech SE and Moderna Inc reduced the risk of infection by 80 per cent two weeks or more after the first of two shots, according to data from a real-world study of vaccinated U.S. healthcare personnel and first responders released on Monday.

The risk of infection fell 90% by two weeks after the second shot, the study of just under 4,000 people found.

The study by the U.S. Centers for Disease Control and Prevention (CDC) evaluated the vaccines’ ability to protect against infection, including infections that did not cause symptoms. Previous clinical trials by the companies evaluated their vaccine’s efficacy in preventing illness from COVID-19.

“This study shows that our national vaccination efforts are working,” CDC Director Rochelle Walensky said in a statement.

The findings from the real-world use of these messenger RNA (mRNA) vaccines confirm what was seen in large controlled clinical trials conducted before they received emergency use authorizations from the U.S. Food and Drug Administration.

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The study looked at the effectiveness of the mRNA vaccines among 3,950 participants in six states over a 13-week period from Dec. 14, 2020 to March 13, 2021.

“The authorized mRNA COVID-19 vaccines provided early, substantial real-world protection against infection for our nation’s healthcare personnel, first responders, and other frontline essential workers,” Walensky said.

The new mRNA technology is a synthetic form of a natural chemical messenger being used to instruct cells to make proteins that mirror part of the novel coronavirus. That teaches the immune system to recognize and attack the actual virus.

© Thomson Reuters 2021

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Delta variant of COVID-19 now makes up nearly 4 in 10 cases in B.C., data shows – Global News

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New data from the BC Centre for Disease control shows that the highly-transmissible Delta variant of COVID-19 has grown to nearly four in 10 cases in the province, up from fewer than one in 10 just two weeks before.

The data comes as the province reported more than 100 new cases in a 24-hour period for the first time in five weeks.

The BCCDC released the data Friday, which covers the week of July 11 to July 15.

Read more:
B.C. reports over 100 new COVID-19 cases for first time in five weeks


BC Centre for Disease Control.

Read more:
96% of COVID-19 cases are among those not fully vaccinated, B.C. health officials say


Click to play video: 'B.C. reports 112 new COVID-19 cases, four new deaths'



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B.C. reports 112 new COVID-19 cases, four new deaths


B.C. reports 112 new COVID-19 cases, four new deaths

Out of 376 cases recorded that week, the Delta variant, first identified in India, made up 39 per cent of cases, while the Gamma variant, first identified in Brazil, made up 40 per cent. The Alpha variant, first identified in the U.K., made up 17 per cent of cases.

Last week, the BCCDC reported the Delta variant made up 33 per cent of cases, while the week before it was just eight per cent.

Research has found that the Pfizer and AstraZeneca COVID-19 vaccines are highly effective against the Delta variant, but only when people receive both doses.

Read more:
Delta COVID-19 variant now behind more than 80% of new U.S. cases 

Partially vaccinated people remain at a much greater risk of contracting it or becoming seriously ill.

B.C. Health Minister Adrian Dix said Friday that 96 per cent of new cases reported in B.C. between June15 and July 15 were among people who weren’t fully vaccinated.

As of Friday, more than 2.68 million people — 58.1 per cent of those eligible and 52.2 per cent of the population — have been fully vaccinated.


Click to play video: 'Could Canada’s COVID-19 vaccination drive slowdown fuel another surge?'



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Could Canada’s COVID-19 vaccination drive slowdown fuel another surge?


Could Canada’s COVID-19 vaccination drive slowdown fuel another surge?

There were strong regional variances in the prevalence of Delta.

In the Vancouver Island Health Region, all of the 14 cases reported over the week in question were found to be the Delta variant.

In the Interior Health Region, which has seen growing case numbers and lagging vaccination rates, Delta made up a whopping 74 per cent of the 122 cases over the week reported.

Read more:
COVID-19: Interior Health trending upwards, leading B.C. in new daily cases

More than half of the new cases reported on Friday were in the Interior Health region.

Vancouver Coastal Health had the second highest prevalence of Delta, at 33 per cent, followed by the Fraser Health region at 15 per cent.

Officials said 97 per cent of all samples tested were at least one of the known variants of concern.

The BCCDC cautions that the data reported on Friday is subject to change due to a lag in sequencing some samples.

© 2021 Global News, a division of Corus Entertainment Inc.

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COVID-19 in Ottawa: Fast Facts for July 24, 2021 – CTV Edmonton

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OTTAWA —
Good morning. Here is the latest news on COVID-19 and its impact on Ottawa.

Fast Facts:

  • The number of active COVID-19 cases in Ottawa continues to creep up as vaccination slows
  • A new outbreak in Barry’s Bay has led to nearly two-dozen close contacts and forced businesses to close
  • Ontario reported 192 new cases on Friday as the seven-day average jumped slightly

COVID-19 by the numbers in Ottawa (Ottawa Public Health data):

  • New COVID-19 cases: Seven new cases on Friday
  • Total COVID-19 cases: 27,768
  • COVID-19 cases per 100,000 (previous seven days): 3.9
  • Positivity rate in Ottawa: 0.5 per cent (seven day average)
  • Reproduction Number: 1.28 (seven day average)

Testing:

Who should get a test?

Ottawa Public Health says you can get a COVID-19 test at an assessment centre, care clinic, or community testing site if any of the following apply to you:

  • You are showing COVID-19 symptoms;
  • You have been exposed to a confirmed case of the virus, as informed by Ottawa Public Health or exposure notification through the COVID Alert app;
  • You are a resident or work in a setting that has a COVID-19 outbreak, as identified and informed by Ottawa Public Health;
  • You are a resident, a worker or a visitor to long-term care, retirement homes, homeless shelters or other congregate settings (for example: group homes, community supported living, disability-specific communities or congregate settings, short-term rehab, hospices and other shelters);
  • You are a person who identifies as First Nations, Inuit or Métis;
  • You are a person travelling to work in a remote First Nations, Inuit or Métis community;
  • You received a preliminary positive result through rapid testing;
  • You require testing 72 hours before a scheduled (non-urgent or emergent) surgery (as recommended by your health care provider);
  • You are a patient and/or their 1 accompanying escort tra­velling out of country for medical treatment;
  • You are an international student that has passed their 14-day quarantine period;
  • You are a farm worker;
  • You are an educator who cannot access pharmacy-testing; or
  • You are in a targeted testing group as outlined in guidance from the Chief Medical Officer of Health.

Where to get tested for COVID-19 in Ottawa:

There are several sites for COVID-19 testing in Ottawa. To book an appointment, visit https://www.ottawapublichealth.ca/en/shared-content/assessment-centres.aspx

  • The Brewer Ottawa Hospital/CHEO Assessment Centre: Open Monday to Friday 10 a.m. to 5:30 p.m. Saturday and Sunday 8:30 a.m. to 3:30 p.m.
  • COVID-19 Drive-Thru Assessment Centre at 300 Coventry Road: Open seven days a week from 10 a.m. to 2 p.m.
  • The Moodie Care and Testing Centre: Open Monday to Friday from 8 a.m. to 3:30 p.m. 
  • The Ray Friel Care and Testing Centre: Open Monday to Friday from 8 a.m. to 3 p.m.
  • North Grenville COVID-19 Assessment Centre (Kemptville) – 15 Campus Drive: Open Monday to Friday 9 a.m. to 5 p.m. Sunday from 9 a.m. to 1 p.m.
  • Centretown Community Health Centre: Open Monday, Tuesday, Wednesday, Friday from 9 a.m. to 4 p.m.
  • Sandy Hill Community Health Centre: Open Monday to Friday from 9 a.m. to 3 pm.
  • Somerset West Community Health Centre: Open from 9 a.m. to 4 p.m. Monday to Wednesday, 1 p.m. to 4 p.m. Thursday and 9 a.m. to 2:30 p.m. on Friday

COVID-19 screening tool:

The COVID-19 screening tool for summer camp children and staff. All campers and staff must complete the COVID-19 School and Childcare screening tool daily.

Symptoms:

Classic Symptoms: fever, new or worsening cough, shortness of breath

Other symptoms: sore throat, difficulty swallowing, new loss of taste or smell, nausea, vomiting, diarrhea, abdominal pain, pneumonia, new or unexplained runny nose or nasal congestion

Less common symptoms: unexplained fatigue, muscle aches, headache, delirium, chills, red/inflamed eyes, croup

The number of active COVID-19 cases in Ottawa is back above 40 for the first time in two weeks, as the city’s vaccine administration pace slows down.

Ottawa Public Health reported seven new cases of the virus in Ottawa on Friday. There were no new resolved cases for the second straight day, so the number of active cases has climbed to 41.

It’s the most since July 9, when there were 43 active cases in the city.

A new outbreak of COVID-19 in Barry’s Bay, Ont. has resulted in two closed businesses and nearly two-dozen high-risk contacts.

The Renfrew County health unit is reporting three new confirmed cases that started with a visit from southern Ontario.

Twenty-one high-risk contacts now have to isolate, a fresh example that Canada is not yet out of the pandemic.

Ontario is reporting another jump in the number of new COVID-19 cases as health officials log just over 190 new infections and the seven-day average rises.

The province confirmed 192 new cases of the novel coronavirus on Friday, which comes after officials logged 185 new infections on Thursday.

Before that, the province reported case numbers below the 150 mark for three days.

Testing

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Today's coronavirus news: Ontario reporting 192 cases of COVID-19, one death; Mostly spectator-free opening ceremony kicks off Tokyo Games – Orangeville Banner

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Orangeville.com

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