人走到哪里,微生物就跟到哪里。生物学家预计人体至少携带有10亿微生物,约占人体总质量的2%,其中大多数都能够与人体细胞和谐相处,但有些也会导致人体生病。即使航天飞机、载人飞船、航天服、装船产品等经过再严格的真空消 Wherever people go, the microbes just follow where they are. Biologists expect the body to carry at least 1 billion microorganisms, accounting for about 2% of the total body mass, most of them are able to live in harmony with human cells, but some can lead to human illness. Even spacecraft, manned spacecraft, space suits, shipments and other products undergo a more stringent vacuum