The first clinical data published on the lethal SARS-like virus spreading across China suggest it has a stealthy quality in its early stages that may allow it to evade detection.
Two studies published Friday in the Lancet depict “a disease with a 3-6 day incubation period and insidious onset” with fever, cough and muscle pain, David Heymann, an infectious disease specialist at the London School of Hygiene & Tropical Medicine, wrote in commentary in the scientific journal.