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The mu variant of Covid-19 is spreading, with new variants cropping up all the time. Anna Durbin, an infectious disease expert at Johns Hopkins, says although variants are concerning, the beauty of mRNA vaccines is the ease with which new …

How quickly will Covid vaccines be able to be made against variants? Elizabeth Tracey reports Read more »

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The best strategy to mitigate Covid-19 infection is still prevention with vaccines, but if you develop the disease, new oral medicines are poised to take their place in treatment. Mark Sulkowski, an infectious disease expert at Johns Hopkins, explains. Sulkowski: …

Are oral medicines for Covid-19 on the horizon? Elizabeth Tracey reports Read more »

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Many countries have or are in the midst of rolling out third doses or boosters against Covid-19, even as the World Health Organization decries the practice. Anna Durbin, an infectious disease expert at Johns Hopkins, says while such a strategy …

The focus of immunizations against Covid should be on the unvaccinated, Elizabeth Tracey reports Read more »

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Many vaccines require more than one dose to be effective in preventing disease, and Covid-19 is no exception. That’s according to Jonathan Zenilman, an infectious disease expert at Johns Hopkins. Zenilman: We do know that the boosts, actually at several …

Are third doses of Covid-19 vaccines boosters or a necessary dosing schedule? Elizabeth Tracey reports Read more »

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Antibodies are proteins that circulate in the blood and act as first responders to viruses, hopefully warding off infection. Antibodies are produced either in response to immunization or natural infection, but whether they provide a useful measure of protection is …

Are antibody tests useful in determining immunity to Covid-19? Elizabeth Tracey reports Read more »

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The EU and many other high income countries are turning increasingly toward booster shots for Covid-19, at least for some groups of people. Mark Sulkowski, an infectious disease expert at Johns Hopkins, explains some of the data. Sulkowski: Israel was …

What is the data supporting use of booster shots for Covid-19? Elizabeth Tracey reports Read more »