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Variants of Covid are springing up all the time, perhaps in people who have compromised immune systems and experience prolonged infection or in animal hosts. Stuart Ray, an infectious disease expert at Johns Hopkins, says right now with Delta and …

Omicron is not the last Covid variant, Elizabeth Tracey reports Read more »

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Both vaccine developers and the FDA have agreed that as new Covid variants emerge and updated vaccines are required, the pathway for providing them should involve testing in far fewer people and over a shorter period of time. Jonathan Zenilman, …

New vaccines for Covid-19 should arrive much faster than their predecessors, Elizabeth Tracey reports Read more »

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Why aren’t Covid vaccines, especially mRNA vaccines, being produced against variants such as Omicron as they emerge? Anna Durbin, an infectious disease expert at Johns Hopkins, says this is what the technology promises. Durbin: I do think we have to …

What will it take for new vaccines against Covid variants to be manufactured and distributed? Elizabeth Tracey reports Read more »

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If you’ve had three doses of an mRNA vaccine against Covid you are much less likely to require hospitalization, require ICU level care, or die from Covid-19, even with the now dominant Omicron variant, than if you aren’t vaccinated at …

There is some protection against Omicron with current vaccines, Elizabeth Tracey reports Read more »

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Children younger than five comprise the last group in whom a vaccine against Covid is currently being tested. Jonathan Zenilman, an infectious disease expert at Johns Hopkins, says late spring may be when enough data will be in for an …

Vaccines against Covid for the very young are just around the corner, Elizabeth Tracey reports Read more »

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First responders and frontline workers have largely soldiered on during these last two years as covid continues to morph. Karen Swartz, a psychiatrist at Johns Hopkins, says when that pressure it released there could be a big impact. Swartz: My …

Will there be a rebound effect among first responders as the pandemic tapers off? Elizabeth Tracey reports Read more »

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One in three adults is reporting mental health problems as the pandemic continues, the most recent CDC data indicate. Karen Swartz, a psychiatrist at Johns Hopkins, says anxiety is extremely common, and depression is hard on its heels. Swartz: With …

Could it be depression? Elizabeth Tracey reports Read more »