Birx said it was closely monitoring data from South Africa, which recently saw an increase in new Covid-19 cases. “Each of these outbreaks is about four to six months apart. This tells me that physical immunity is declining considerably in the general population after four to six months – that a significant increase will occur again,” Birx told Face. the Nation “. ” “That’s why we have to be prepared in this country. We have to be prepared now for a possible rise in the summer in the southern United States because we saw it in 2020 and we saw it in 2021.” Public health officials need to make it clear to the public that protection against infection is declining over time and precautions should be taken with vulnerable or at-risk individuals, Birx said. He said Covid-19 home test kits and boosters were critical tools to help Americans handle the surges.
