GOP Congressman Says He Has COVID-19 for Second Time

Rep. Clay Higgins of Louisiana has said he believed he had 'natural immunity' from an earlier infection

J. Scott Applewhite/AP Photo File Photo: Rep. Clay Higgins, R-La., arrives as the House Republican Conference meets to elect a new chair, at the U.S. Capitol in Washington, D.C., May 14, 2021.

A Republican congressman from Louisiana said Sunday that he was sick with COVID-19 for the second time as a surge of new infections hits parts of the U.S. with low vaccination rates.

Referring to the disease as the “biological attack weaponized virus” from China, Rep. Clay Higgins said on Facebook that the latest infection is “far more challenging” than a bout with the coronavirus in January 2020.

It was unclear whether the earlier infection was confirmed, and researchers have said there isn't enough evidence yet to know the virus' origins. Higgins said Sunday that he developed COVID-19 “before the world knew what it was."

Read the full story at NBCNews.com.