The spread of two new Covid-19 variants is causing concern in the US, reports The Guardian.<\/p>\n\n\n\n
According to the CDC, 13 percent of all new COVID cases in the country in the first week of June were omicron variants BA.4 and BA.5. However, most new cases are an older omicron variant, although some experts believe that the two new ones may eventually take over.<\/p>\n\n\n\n
The previous week, the corresponding level was 7.5 percent and at the beginning of May only one percent, according to The New York Times.<\/p>\n\n\n\n
The European Union's disease control agency ECDC calls both sub-variants worrying.<\/p>\n\n\n\n
Scientists have warned that the new variants are more contagious and can affect people who have previously been infected. Both subtypes have also spread rapidly around the world, with the World Health Organization (WHO) saying in May that they were responsible for a surge in cases in more than 50 countries.<\/p>\n\n\n\n
In the United States, the two variants have spread particularly in the south, in states such as Texas, New Mexico, Arkansas, Oklahoma and Louisiana.<\/p>\n\n\n\n
The variants were first discovered in South Africa in January and February and dominate the spread of infection there.<\/p>\n\n\n\n
Source: aftonbladet.se<\/p>","protected":false},"excerpt":{"rendered":"
Spridningen av tv\u00e5 nya covid-19-varianter oroar i USA, rapporterar The Guardian. Enligt smittskyddsmyndigheten CDC var 13 procent av landets alla nya covidfall under f\u00f6rsta veckan av juni omikronvarianterna BA.4 och BA.5. De flesta nya fall \u00e4r dock en \u00e4ldre omikronvariant \u00e4ven om vissa experter tror att de tv\u00e5 nya s\u00e5 sm\u00e5ningom kan ta \u00f6ver. F\u00f6reg\u00e5ende […]<\/p>\n","protected":false},"author":25,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[3809,422,436],"class_list":["post-239517","post","type-post","status-publish","format-standard","hentry","category-travel-report","tag-cdc","tag-covid","tag-usa"],"acf":[],"yoast_head":"\n