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Tag: vaccines

New estimates show latest COVID vaccine cuts risk of symptomatic infection

Today in Morbidity and Mortality Weekly Report, researchers published findings showing adults who received an updated 2023-24 COVID-19 vaccine were 54% less likely to have symptomatic infection than those who didn’t, and the vaccine was found to protect against JN.1 and other circulating variants.

This is one of the first studies to update 2023-24 COVID vaccine effectiveness (VE) data. The monovalent (single-strain) booster vaccine derived from XBB.1.5 was approved for use in all Americans 6 months and older on September 12, 2023, but uptake has been low. Moreover, the XBB strains of the virus, which the vaccine was based on, are no longer the dominant strains in the United States, having been replaced by JN.1 in December 2023.

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Study: COVID-19 vaccine tied to lower risk of long COVID in kids

A study today in the journal Pediatrics from researchers at the Children’s Hospital of Philadelphia suggests COVID-19 vaccines have a moderately protective effect in kids against long COVID.

The authors of the retrospective study mined electronic health records from 17 healthcare systems to assess whether the vaccine protected children from long COVID, which has been less common in kids than in adults. The study began in October 2022.

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Toronto may be past its flu peak, but COVID-19 remains high, public health agency says

Toronto likely reached its influenza season peak in December, but according to Toronto Public Health’s latest respiratory illness update, COVID-19 infections are expected to remain high for now.

The percentage of positive influenza tests dropped to 6.6 per cent the week of Dec. 31 to Jan. 6, down from 15.6 per cent the week prior, Toronto Public Health (TPH) told the city’s Board of Health Monday. When it comes to COVID-19, positivity dropped only slightly to 17.6 per cent for the week of Dec. 31 to Jan. 6 from 18.6 per cent the week before.

But getting over the influenza peak doesn’t mean there aren’t still high levels of the illness in the city.

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A spring COVID-19 booster? NACI has released updated guidelines

Canadians may be in the thick of winter, but the National Advisory Committee on Immunization (NACI) recently unveiled guidelines for an extra dose of the COVID-19 vaccine for the upcoming spring.

On Friday, NACI released updated guidelines on the COVID-19 boosters for spring 2024.

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Older, immunocompromised people may get COVID-19 vaccine dose in spring, NACI says

Canada’s National Advisory Committee on Immunization says some groups of people vulnerable to severe illness from COVID-19 should be eligible for another dose of vaccine in the spring.

The recommendation issued Friday says people aged 65 and older, residents of long-term care homes and seniors living in other congregate settings may get another shot of the vaccine targeted to the XBB.1.5 variant.

It also says children and adults aged six months and older who are moderately to severely immunocompromised due to an underlying condition may also get the booster.

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Holiday gatherings and a new variant have driven up COVID cases globally, the UN health agency says

The head of the U.N. health agency said Wednesday holiday gatherings and the spread of the most prominent variant globally led to increased transmission of COVID-19 last month.

Tedros Adhanom Ghebreyesus said nearly 10,000 deaths were reported in December, while hospital admissions during the month jumped 42% in nearly 50 countries — mostly in Europe and the Americas — that shared such trend information.

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Non, les vaccins contre la COVID-19 n’ont pas fait 17 millions de morts

The COVID-19 vaccination campaign did not result in millions of deaths, as claimed by a former University of Ottawa professor during an interview on Monday’s Network X show with conspiracy activist Alex Jones.

Denis Rancourt, a former University of Ottawa professor, was invited this week to participate in Alex Jones’ Infowars. The appearance came three days after Tucker Carlson’s show referred to Rancourt’s claims that COVID-19 vaccines have killed at least 17 million people worldwide.

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How Musk Sold MAGA on HCQ — and Opened the COVID-19 Disinformation Floodgates

When the pandemic hit American soil, the country faced a tragic lack of leadership in President Donald Trump, a man who famously did not bother to read his daily briefs. He also spent a lot of time on Twitter, and not only religiously watched Fox News but took policy cues from it. In the emerging crisis — which happened to coincide with Trump’s reelection campaign gearing up — while scientific experts couldn’t get the ear of the president, social media and right-wing media very much could and did.

Trump, who had promised the pandemic would simply disappear, came to embrace a too-good-to-be-true pandemic “solution” in the form of hydroxychloroquine (HCQ), which had captured the excitement of Silicon Valley — and the attention of Elon Musk on Twitter. Though the repurposing of existing drugs is not inherently a bad idea, Team Trump was not interested in engaging in the scientific process to test for safety and efficacy. And it certainly wasn’t the only time Musk or Trump recklessly took off with an idea because they wanted it to be true.

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Sydney doctor calls for higher public flu vaccination rates to ease ER waits

Emergency room wait times are up at the Cape Breton Regional Hospital in Sydney, N.S., mostly due to seasonal flu and respiratory illnesses and a resurgence of COVID, according to an emergency department doctor.

“The emergency department is crazy busy,” said Dr. Margaret Fraser, a family physician who does shifts at the regional ER. “We’re seeing very long wait times for patients — 12, 14, 18 hours — and high volumes of patients with respiratory illness, unfortunately.”

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Updated COVID vaccine 71% effective against hospitalization for older adults

The estimated effectiveness of the updated COVID-19 vaccine among people aged 60 and older in the Netherlands was 70.7% against hospitalization and 73.3% against intensive care unit (ICU) admission in fall and early winter 2023, according to a study published yesterday in Eurosurveillance.

Researchers at the National Institute for Public Health and the Environment and University Medical Center Utrecht parsed data on hospitalizations with admission dates from October to December to estimate the effectiveness of the XBB.1.5 Pfizer/BioNTech COVID-19 vaccine among recipients of at least one previous vaccination. The study included 2,050 hospitalized adults aged 60 and older, 14.4% of whom had received the 2023 COVID-19 vaccine.

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JN.1 is Canada’s new dominant COVID-19 subvariant. Here’s what to know

A new COVID-19 subvariant, known as JN.1, has emerged and is now the prevailing strain across Canada, prompting health experts to caution that it may be more infectious and could even have extra symptoms.

Currently, the subvariant makes up the highest proportion of all COVID-19 variants, accounting for more than half (51.9 per cent) of all infections in Canada, according to the latest data from the Public Health Agency of Canada (PHAC).

JN.1 was first detected in Canada on Oct. 9, and since then has rapidly increased.

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Health Canada approves RSV vaccine for maternal immunization

Health Canada has approved a new vaccine geared toward protecting two groups most severely affected by the respiratory syncytial virus (RSV): newborns, who would receive antibodies through maternal immunization, and Canadians over 60.

Pfizer Canada’s bivalent vaccine, called Abrysvo, aims to prevent lower respiratory tract disease caused by the virus.

It is the first RSV vaccine in Canada approved for use in pregnancy to provide protection for infants from birth to six months of age, and the second approved for seniors aged 60 and over.

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Opinion: The U.S. is facing the biggest COVID wave since Omicron. Why are we still playing make-believe?

The pandemic is far from over, as evidenced by the rapid rise to global dominance of the JN.1 variant of SARS-CoV-2. This variant is a derivative of BA.2.86, the only other strain that has carried more than 30 new mutations in the spike protein since Omicron first came on the scene more than two years ago. This should have warranted designation by the World Health Organization as a variant of concern with a Greek letter, such as Pi.

By wastewater levels, JN.1 is now associated with the second-biggest wave of infections in the United States in the pandemic, after Omicron. We have lost the ability to track the actual number of infections since most people either test at home or don’t even test at all, but the very high wastewater levels of the virus indicate about 2 million Americans are getting infected each day.

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Albertans can now book appointments for the updated Novavax vaccine

A limited supply of the updated Novavax vaccine is rolling out in Alberta this week with appointment booking starting Wednesday and shots going into arms as of Friday.

Alberta Health said it has approximately 5,000 doses of the Novavax XBB.1.5 vaccine in stock.

The latest version of the protein-based vaccine was approved by Health Canada in early December.

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Respiratory virus activity is high and rising across the United States, CDC data shows

As seasonal virus activity surges across the United States, experts stress the importance of preventive measures – such as masking and vaccination – and the value of treatment for those who do get sick.

Tens of thousands of people have been admitted to hospitals for respiratory illness each week this season. During the week ending December 23, there were more than 29,000 patients admitted with Covid-19, about 15,000 admitted with the flu and thousands more with respiratory syncytial virus, or RSV, according to data from the US Centers for Disease Control and Prevention.

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Less than 5% of US preschool cohort hospitalized for COVID were fully vaccinated, study finds

Only 4.5% of a cohort of pediatric COVID-19 patients admitted to US hospitals during the period of Omicron predominance had completed their primary COVID-19 vaccine series, and 7.0% had started but didn’t finish the series, The Pediatric Infectious Disease Journal reports.

The study team, led by Centers for Disease Control and Prevention (CDC) researchers, enrolled 597 vaccine-eligible COVID-19 inpatients aged 8 months to 4 years at 28 hospitals participating in the Overcoming COVID-19 network from September 2022 to May 2023. A total of 62.1% of patients were aged 8 months to 1 year, and 37.9% were aged 2 to 4 years.

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Waterloo region’s COVID booster rate lags behind national average

The number of people in Waterloo region who have received their most recent COVID-19 booster shot is just under 11 per cent, which is below the national average.

The region’s vaccination dashboard shows 10.9 per cent of people in the community are up-to-date on their vaccinations as of Dec. 7. The region notes “up to date” means a person has completed their primary series and received a booster dose within the previous six months.

The number of people who have received the updated XBB.1.5 COVID-19 vaccine sits at 10.8 per cent, the region told CBC News in an email.

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HHS closes urgent care for two days amid staff shortages, congestion at hospitals

Staffing shortages will close a Hamilton urgent care centre for two days at the same time city emergency departments are becoming increasingly congested with flu, COVID-19 and RSV patients.

With just 13 per cent of Hamiltonians getting a COVID shot in the past six months, local hospitals are bracing for the viral surge to continue climbing over the holidays.

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