Many patients with weak immune systems don't realize their Covid-19 medicine isn't as effective as it used to be | CNN Judy Salins considers herself a smart, empowered patient, but until this week, she had no idea that the medicine she takes to defend herself against Covid-19 isn't protecting her as well as it used to. Elizabeth Cohen,Naomi Thomas CNN

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The medicine is called Evusheld, and its effectiveness is waning dramatically because new Covid-19 subvariants are taking center stage, and the drug doesn’t neutralize all of them.

‘Immunity debt’: Why experts say this new term promotes COVID-19 ‘misinformation’ - National | Globalnews.ca The term "immunity debt" is circulating as an explanation of a surge in illness in Canada, but infectious diseases experts say it's “dangerous” and promotes COVID “misinformation.” Teresa Wright Global News

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The first hypothesis suggests people’s immune systems are weaker now, due to a lack of exposure to viruses while observing COVID-19 public health measures over the last two-and-a-half years.

Are there longterm myocarditis risks after Covid vaccination? Both Pfizer and Moderna are launching clinical trials to track health issues — if any — in the years following a diagnosis of vaccine-associated heart problems in teens and young adults. NBC News

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Moderna says updated booster generated 'significantly higher' neutralizing antibodies against BA.4/BA.5 subvariants | CNN Moderna said on Monday its updated Covid-19 booster generated "significantly higher" neutralizing antibodies against the Omicron BA.4/BA.5 subvariants than its earlier booster. Nadia Kounang CNN

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Global COVID cases will increase in coming months, but at a slower pace -report Daily global COVID-19 infections are projected to rise slowly to about 18.7 million by February from the current 16.7 million average daily cases, driven by the northern hemisphere's winter months, the University of Washington said in an analysis. Reuters Reuters

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U.S. is extending Covid public health emergency through spring 2023, administration official says The public health emergency, first declared in January 2020 and renewed every 90 days since, has had a vast impact on the U.S. health-care system. Spencer Kimball CNBC

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China shortens quarantines as it eases some of its COVID rules China on Friday eased some of its strict COVID rules, including shortening quarantines by two days for close contacts of infected people and for inbound travellers, and removing a penalty for airlines for bringing in too many cases. Ryan Woo,Tony Munroe Reuters

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European regulator recommends Pfizer's Omicron booster for children Pfizer Inc and its partner BioNTech said on Thursday the EU health regulator has recommended authorising the use of their bivalent COVID-19 shot as a booster in children aged 5 through 11. Reuters Reuters

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