According to a Centers for Disease Control and Prevention (CDC) official, updated Covid vaccines from Pfizer, Moderna, and Novavax are expected to be available to the public in mid-September. This provides a more specific timeline than what was previously known. The vaccines still need approvals from the Food and Drug Administration (FDA) and the CDC, and eligibility guidelines will be set by an independent panel of advisors. The CDC and FDA officials emphasize the importance of getting vaccinated against Covid and other respiratory viruses, especially as fall approaches. The arrival of updated vaccines brings reassurance amid a slight uptick in Covid cases and hospitalizations in the US. The surge is primarily attributed to newer strains of the virus, such as EG.5 (Eris) and the omicron subvariant XBB.1.5, which the updated vaccines are designed to target. However, there is uncertainty about the effectiveness of the vaccines against another new omicron strain called BA.2.86. Data on this strain will be available in the coming weeks. Nevertheless, it is expected that the new vaccines will protect against severe outcomes from the Covid virus. The CDC and World Health Organization are closely monitoring the BA.2.86 strain, which has distinct mutations but no evidence of increased transmission or severity.
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