{"id":1169,"date":"2024-06-29T11:40:29","date_gmt":"2024-06-29T11:40:29","guid":{"rendered":"https:\/\/retirednurseblog.com\/index.php\/2024\/06\/29\/a-summer-wave-of-covid-19-has-arrived-in-the-us\/"},"modified":"2024-06-29T11:40:29","modified_gmt":"2024-06-29T11:40:29","slug":"a-summer-wave-of-covid-19-has-arrived-in-the-us","status":"publish","type":"post","link":"https:\/\/retirednurseblog.com\/index.php\/2024\/06\/29\/a-summer-wave-of-covid-19-has-arrived-in-the-us\/","title":{"rendered":"A summer wave of Covid-19 has arrived in the US"},"content":{"rendered":"

Covid-19 levels have been rising in the United States for weeks as new variants drive what\u2019s become an annual summer surge. <\/p>\n

Covid-19 surveillance has been scaled back significantly since the US public health emergency ended more than a year ago \u2014 individual cases are no longer counted, and severe outcomes are based on representative samples of the population \u2014 but the data that is available is showing a consistent upward trend. <\/p>\n

Infections are probably growing in at least 38 states, according to data from the US Centers for Disease Control and Prevention. Wastewater surveillance suggests that viral activity is still relatively low, but hospitalizations and deaths are also ticking up. <\/p>\n

Covid-19 levels are especially high in the West, where viral levels are back to what they were in February, and in the South, according to the CDC. <\/p>\n

\u201cThe virus tends to replicate well and to stay alive in an environment with warm and moist conditions. That fits with what we\u2019re seeing,\u201d said Dr. Robert Hopkins, medical director of the National Foundation for Infectious Diseases, a nonprofit public health organization. \u201cThe South and the West are steamy and hot right now.\u201d <\/p>\n

The summer bump has become a familiar seasonal pattern, but experts warn that the coronavirus can still be quite unpredictable. <\/p>\n

\u201cI think it\u2019s still a bit early to say what the pattern is,\u201d Hopkins said. \u201cA large portion of the population has had some exposure to the virus, the peaks have been a little bit less high, and we have tended to see a summer bump as well as a winter increase. But whether that pattern is going to continue or whether it will become an all-year-round disease or whether it will stay in one particular time \u2014 I think it\u2019s a little early to say.\u201d <\/p>\n

Data from WastewaterSCAN, a nationwide sewage surveillance network based at Stanford University in partnership with Emory University, suggests that this summer wave started weeks earlier than last summer\u2019s wave and has reached levels similar to last summer\u2019s peak. <\/p>\n

\u201cIt remains to be seen if this will be a peak level for this surge,\u201d said Dr. Marlene Wolfe, assistant professor of environmental health at Emory and program director for WastewaterSCAN. <\/p>\n

\u201cWe are always trying to unpack what is potential seasonality with Covid and also what are the impacts of new variants that may be coming through that drive these surges that we see more regularly, more frequently than we do for influenza and RSV,\u201d she said. <\/p>\n

Over the past few months, the JN.1 virus variant that drove this winter\u2019s surge has been overtaken by newer offshoots. These so-called FLiRT variants \u2014 an acronym that refers to the locations of the amino acid mutations that the virus has picked up \u2014 have changes in some places that help them evade the body\u2019s immune response and others that help them become more transmissible. Two of them \u2014 KP.3 and KP.2 \u2014 now account for more than half of the new Covid infections in the US, according to CDC data. <\/p>\n

Expect an updated vaccine this fall<\/h2>\n

Because of manufacturing timelines, experts have to make predictions now if they want a new vaccine for fall. <\/p>\n

Earlier this month, the FDA endorsed a plan to update the Covid-19 shots to be more effective against the JN.1 lineage of the coronavirus. But the agency later updated its own recommendation. Vaccine manufacturers were advised to target the KP.2 strain if possible, in part because of the \u201crecent rise in cases.\u201d <\/p>\n

\u201cJN.1 has continued to evolve, and it makes it somewhat difficult to pick the particular specific strain to be used,\u201d Dr. Jerry Weir, director of the Division of Viral Products in the Office of Vaccines Research and Review at the FDA\u2019s Center for Biologics Evaluation and Research, told an independent advisory committee ahead of the initial recommendation. <\/p>\n

The new vaccines \u2014 some that will make the switch to target KP.2 \u2014 are anticipated to become available between mid-August and late September. That\u2019s enough time to offer protection during the winter respiratory virus season but probably after this summer\u2019s wave has ebbed. <\/p>\n

On Thursday, the CDC recommended that everyone ages 6 months and older receive an updated Covid-19 vaccine for the 2024-25 season. The recommendation echoes the vote of that agency\u2019s independent advisory committee. <\/p>\n

Protection from Covid-19 vaccines wanes, and the timing of the shot prioritizes maximum protection when there have typically been higher and more sustained peaks, Plescia said. Unlike flu and RSV, Covid-19 is constantly circulating; it doesn\u2019t offer a reprieve. <\/p>\n

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