Yes, and stones don't fall from the sky!
"How has Coronavirus spread?
There is reason to doubt that person-to-person contagion sufficiently explains it. Some recent cases followed no apparent exposure to a human carrier. Passengers on a cruise ship, confined to quarters, caught the virus at an unaccountably high rate. The worldwide spread seems too rapid. To advocates of panspermia, another unproven theory should not be automatically dismissed. Perhaps the virus is originally airborne, having arrived from space with cometary dust. If so, perhaps the cruise passengers were exposed to a heavy concentration of airborne viruses at sea, before lockdown. If the incubation period can be as long as 14 days, the high number stricken after lockdown makes more sense.
Interestingly, the flu often seems to come from China — Hong Kong Flu, Asian Flu, and now COVID-19. Hoyle and Wickramasinghe had an intriguing hypothesis to explain this. Viral particles landing as cometary dust from above the atmosphere could take a year or more to drift down to Earth's surface. Wind turbulence can speed this up. The jetstream is obligated to bounce high in the stratosphere over the Himalayas, Earth's tallest mountain range. Downwind, the jetstream would descend onto the plain of China. There viral particles from space would likely first make landfall."