Months after the coronavirus infected more than 700 people on board the Diamond Princess cruise ship in Japan, scientists are still gleaning insights into the patterns of illness it causes.
Almost a fifth of the 3,711 passengers and crew on the 13-deck luxury ship in February caught the virus -- most of them showing no tell-tale symptoms of Covid-19 at the time.
A detailed analysis of cases found the disease could be very mild, causing a sore throat, dry cough and runny nose, without fever or lower respiratory tract symptoms, a study published in the June edition of the journal Emerging Infectious Diseases showed.
That’s problematic and differs with early reports that described Covid-19 manifesting as pneumonia, according to researchers in