The WHO said it was essential that investigations continue in China to identify the source of the outbreak and any animal reservoirs or intermediate hosts.
In contrast, if the HCoV is newly introduced to an intermediate host right before or around its introduction to humans, it is not well adapted to the new host and is often pathogenic.
Whole-genome comparison to date has found at most 92% of genetic material shared between pangolin coronavirus and SARS-CoV-2, which is insufficient to prove pangolins to be the intermediate host.
如果HCoV不能在中间宿主内维持其传播,则可能会发生终端感染。
An HCoV can undergo a dead-end infection if it cannot sustain its transmission within the intermediate host.
Although both SARS-CoV and MERS-CoV are derived from bats, they do not directly infect humans, but achieve their cross-species transmission through intermediate hosts.
Whereas civets and other animals in the markets have been found to harbour viruses identical to SARS-CoV, immediate intermediate hosts for SARS-CoV-2 have not been identified.
中间宿主均为淡水螺。
The intermediate hosts are freshwater teleosts.
这中间宿主可能是一个哺乳动物;
That intermediate host could be a mammal;
主要中间宿主是猪。
Other intermediate hosts are the pigs.
中间宿主在幼虫阶段接触。
The intermediate host comes in contact during the larvae stage.
而猪是中间宿主。
Pigs were the intermediate hosts.
比如MERS病毒,中间宿主就是骆驼。
In the case of MERS, the camel was the intermediate host.
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