Mutations

3 challenges to watch in global health in 2023 As the third year of the Covid pandemic ends and we look to 2023, what can be spotted on the horizon? Helen Branswell STAT

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As the third year of the Covid pandemic ends and 2023 begins, what can be spotted on the horizon? We already know about a bunch of things that are going to jostle for our attention; rest assured others we’re not anticipating will materialize as well.

 ...three issues we can see right now.

'I don't trust it:' Vaccine hesitancy lingers even as China COVID cases surge The problem is a growing headache for Beijing as it tries to persuade more people to get vaccinated in the face of a spike in infections and the prospect of more than 1.5 million deaths after the lifting of strict anti-COVID measures. David Kirton Reuters

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COVID booster prompts good immune response, except after recent infection CIDRAP

A study today in Clinical Infectious Diseases finds that a third COVID-19 vaccine dose triggered a robust immune response, regardless of whether recipients had been infected more than 3 months earlier, but it didn't significantly increase antibody levels in those infected less than 3 months before.

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Omicron offshoot XBB.1.5 could drive new Covid-19 surge in US | CNN The CDC estimates that XBB.1.5 has more than doubled its share of the Covid-19 pie each week for the last four, rising from about 4% to 41% of new infections over the month of December. Brenda Goodman CNN

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