@NjbBari3 @HZiauddeen That must have been it. Unless there are colds with long incubation period. I think I looked into that the time and concluded not. Tested neg for covid and neg covid ab later, so definitely not covid.
@NJBari3@HZiauddeen一定就是这样。除非有潜伏期长的感冒。我想我当时已经调查过了，但没有得出结论。后来对neg进行了新冠病毒和新冠病毒抗体检测，所以肯定不是新冠病毒。