abstract:A passenger virus is a virus that is frequently found in samples from diseased tissue, such as tumours, but does not contribute to causing the disease.
In China, officials have quarantined 68 people, including 13 crew members, who were passengers of a Mexico City to Shanghai flight, which carried a passenger who tested positive for the virus, China's state-run Xinhua news agency reported Sunday.
The contaminated ships have since been disinfected but with only mixed success, perhaps because a sick passenger (or one who is incubating the virus) can board and infect others.