The number of coronavirus reinfections appears to be increasing in the Czech Republic, a state health institute says, APA reports citing BBC.
Czech’s National Institute of Public Health said 1,456 cases of possible Covid-19 reinfections have been identified since the pandemic began.
"The reinfection rate is growing because of the significant number of Covid-19 cases during the autumn wave," the institute said in a statement.
The institute said it defined a reinfection as a confirmed, symptomatic case of Covid-19 that occurs 60 days or more after an initial infection.
“The interval between the first and second episode of the disease was in the range of 68 to 359 days,” says Marek Maly, a researcher at the institute.
Researchers say coronavirus reinfection is uncommon but still possible. Because Covid-19 hasn’t been around that long, it is not clear how long immunity lasts if you have been infected.
But a recent study led by Public Health England (PHE) showed most people who have had the virus are protected from catching it again for at least five months.
You can read our Covid immunity explainer here for more context.