The woman shed particles of infectious coronavirus for at least 70 days without showing any symptoms of COVID-19.
In March, a 71-year-old Texas woman with leukemia was diagnosed with the coronavirus. The woman remained infectious for at least 70 days, although she did not develop an infection. By mid-June, more than 100 days later, the woman’s test was still positive, meaning her body still contained traces of the virus’s genetic material. The American had to stay in isolation for more than 2 months in order not to infect anyone.
The results show that immunocompromised people who contract the coronavirus may remain infectious for longer than previously thought. On average, COVID-19 patients shed infectious viral particles for about eight days.