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Covid-19 transmission rates continue to fall around the country, and many states are rolling back mask mandates as well as other restrictions. Johns Hopkins physician Sherita Golden says while this is encouraging news, we need to all take a measured …

Should you ditch your mask? Elizabeth Tracey reports Read more »

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When it comes to whether you’re protected against Covid-19, either by immunization or natural infection, controversy has swirled around antibody levels and how good a predictor they are. Dorry Segev, a transplant surgeon at Johns Hopkins who has looked at …

How predictive are antibody levels when it comes to Covid-19 protection? Elizabeth Tracey reports Read more »

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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 »