 መጋቢት 30 የወጣው ዘገባ ቫይረሱ ከሌላ የሌሊት ወፎች ወደ ሌላ እንስሳ የተላለፈ መሆኑንና የላብራቶሪ ፍሳሽ መንስኤ "እጅግ በጣም የማይቻል" ነው ብሏል ።
The report issued on March 30 said the virus had probably been transmitted from bats to humans through another animal, and that a lab leak was "extremely unlikely" as a cause.