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As summer temperatures rise, so do coronavirus cases

As summer temperatures rise, so do coronavirus cases

 


Three new variants — KP.3, KP.2 and LB.1 — are driving a nationwide surge in COVID-19 cases, according to the Centers for Disease Control and Prevention. report Over the past week, test positivity rates (up 1.2%), emergency room visits (14.7%), hospitalizations (25%), and deaths (16.7%) have all increased, raising many questions about why cases are spiking over the summer and what can people do to stay safe.

Why are COVID-19 cases on the rise?

From December 2023 to May 2024, the JN.1 variant, a descendant of the Omicron strain, was the main cause of COVID-19 infections in Japan. However, in the past two months, three new sub-variants (some Cheating) emerged from JN.1 and currently account for more than 70% of cases. These subvariants (KP.3, KP.2, LB.1) have multiple mutations in the gene that codes for the spike protein that is targeted by antibodies generated by COVID-19 vaccines.

These mutations may allow KP.3, KP.2, and LB.1 to evade the immune system more effectively and spread more efficiently. For people who received their last vaccination in 2023 or who experienced a natural infection more than six months ago, the immune system is less likely to prevent infection by the new variants. This gap in specific immunity to KP.3, KP.2, and LB.1 may lead to Summer excitement In the case of COVID-19.

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Are new COVID-19 subvariants causing more severe disease?

Fortunately, there is no evidence that infection with KP.3, KP.2, or LB.1 leads to worsening symptoms. Most infected individuals experience symptoms similar to those caused by past COVID-19 variants, including sore throat, fever, cough, body aches, and fatigue.

But as the number of cases rises, more vulnerable people, such as older people and those with compromised immune systems, are also at risk of catching the virus and becoming seriously ill. They may experience difficulty breathing and require hospitalization.

Three steps to keep you safe for the rest of 2024

Despite the summer surge in COVID-19 cases, there are measures you can take to keep yourself and those around you safe. First, if you are feeling unwell, stay home and get a COVID-19 antigen test. If it's positive, you likely have COVID-19 and should avoid contact with others until your symptoms subside. If the at-home antigen test is negative, consider a lab-based COVID-19 test. The good news is that both at-home antigen tests and lab tests should still be able to detect new variants.

Second, if you host a summer gathering, try to hold it outdoors, where better ventilation reduces the chance of the virus spreading. And if warmer temperatures require you to hold the party indoors, consider asking your guests to take a COVID-19 antigen test before they arrive.

Finally, get the latest vaccine this fall. The Food and Drug Administration recently advice Vaccine manufacturers plan to target the JN.1 lineage and possibly the KP.2 variant in upcoming vaccine formulations. These new vaccines are expected to be available this fall and will generate a more specific antibody response against the most recently circulating strains. Vaccination is the best means of preventing infection and, most importantly, severe illness.

Sources

1/ https://Google.com/

2/ https://www.forbes.com/sites/matthewbinnicker/2024/06/26/summer-temperatures-are-rising—and-so-are-covid-19-cases/

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