Two relatively new variants of the omicron strain of coronavirus, BA.4 and BA.5It has been gaining ground in the US in recent weeks, at a time when the country is practically back to normal but coinciding with a recovery in the pandemic.
according to the data Disease Control Centers (CDC for its English abbreviation), BA.4 and BA.5 – responsible for the increase in infections in South Africa in April and May – already suppose. 13% of detected cases in America.
Just a week ago, these variants were only responsible for one. 6% of cases; and a month ago, they barely had a presence in the United States, indicating that their expansion was occurring at a very high rate.
White House’s covid-19 response coordinator, Ashish Jha, In an interview with NBC, he said that his predictions are that BA.4 and BA.5 will be the most common coronavirus variants in the country in late summer or early fall.
First detected in South Africa in early 2022, these variants are more contagious and have greater ability than other omicron strains. bypass the immune defense systemhowever, they have not currently been shown to cause more severe disease than other types of omicron.
The United States is going through a moment of confusion around the pandemic, with the country returning to normal practice in terms of economic activity and even preventative measures such as mask use, but still infections are increasingand many experts warn that the numbers do not reflect the true magnitude of the cases.
Source: Informacion
