Four tourists were found to be nucleic acid positive in Ali, Tibet. How did they get infected?

Introduction: Due to the long duration of the epidemic, many people are very concerned about the dynamics of the epidemic. Netizens who are concerned about current social events may have noticed such a shocking news: four tourists in Ali, Tibet were found to be nucleic acid positive. Once this news was released, it attracted the attention of many netizens and discussed the matter. Because of the unique scenery in Tibet, many people will choose to travel to Tibet. Because of the large number of tourists, it is more likely to be infected with COVID-19 virus.

In many discussions, many people are concerned about how these four tourists were infected. Although many people think this question is a bit difficult, Bian Xiao thinks it is easy to answer. These four tourists may be infected mainly because of these three aspects. The first aspect is that foreigners bring COVID-19. According to related news reports, all four tourists are foreign tourists. It can be seen that these four tourists may have been infected by close contact with foreigners with COVID-19 virus.

If these four tourists had not had close contact with foreigners carrying COVID-19, then these four tourists should not be infected with COVID-19 virus. As these four tourists are asymptomatic infected, these four tourists may have had close contact with foreigners with COVID-19 virus. The second aspect is that these four tourists may have had close contact with infected people. Although relevant epidemic prevention and control policies have been implemented locally, people may not strictly abide by these epidemic prevention and control policies.

If the infected person comes into contact with others, it may also infect others. If these four tourists have had close contact with infected people, then these four tourists will become new asymptomatic infected people. The third aspect is that these four tourists came into contact with infected animals. Although COVID-19 virus mainly infects people, COVID-19 virus can also infect animals. If animals are infected with COVID-19 virus, the infected animals may transmit the new coronavirus to humans. If these four tourists come into contact with infected animals, then these four tourists will become new asymptomatic infected people.