Coronavirus particles

This 2020 electron microscope image made available by the Centers for Disease Control and Prevention shows SARS-CoV-2 virus particles which cause COVID-19. According to research released in 2021, evidence is mounting that having COVID-19 may not protect against getting infected again with some of the new variants. People also can get second infections with earlier versions of the coronavirus if they mounted a weak defense the first time.

Health officials have confirmed a Delta variant coronavirus case in the New Orleans area, adding to about a dozen cases in Louisiana.

LSU Health's School of Medicine in New Orleans said Friday the diagnosis was the first Delta variant confirmed in Louisiana's Region 1, which includes Jefferson, Orleans, Plaquemines and St. Bernard parishes. The school didn't elaborate on the individual who tested positive for the Delta variant. 

About a dozen Delta variant cases have been confirmed statewide, LSU Health said.

The exact number isn't clear because Louisiana doesn't have the capacity to test its positive samples for signs of the strain. National data show the Delta variant makes up 25% of cases in a multi-state region that includes Louisiana. 

The strain was first confirmed in India and has since made up at least 20% of U.S. coronavirus cases. LSU Health officials said in mid-June there were 28 COVID-19 variants in Louisiana, the most prevalent being one known as the United Kingdom variant.

Officials have said for months they expect variant cases to increase in states such Louisiana, where vaccine rates are lagging. 

Contact Katelyn Umholtz at kumholtz@theadvocate.com.