Some space experts point out that space stations and spacecraft are likely to bring back space microbes, which may have mutated in isolated space and will certainly pose a threat to humans if they return to Earth and escape destruction
It has been reported that the Mir space station was filled with a variety of fungi that could pose a deadly threat to humans if mixed with decomposable metal, glass and plastic bacteria in the earth's soil
Space mutant fungi will be the deadliest threat to mankind