RIO DE JANEIRO, BRAZIL - Doctors in China have observed that the coronavirus is manifesting differently among patients from a new outbreak in the country's northeast, compared to the original outbreak in Wuhan.
The data suggest that the pathogen may be mutating in unknown ways, which hinders the efforts to eradicate it.
Patients in the northern provinces of Jilin and Heilongjiang seem to carry the virus for a more extended period, and their tests take longer to come back negative, said Qiu Haibo, one of China's leading physicians specializing in intensive care, in an interview with the state TV . . .