0 caused by a virus -- 病毒病，病毒性疾病；病毒感染
viral infections 病毒感染
1 used to describe something that quickly becomes very popular or well known by being published on the internet or sent from person to person by email, phone, etc. -- （通過網路在個體之間迅速）病毒式的（傳播）
Cryptosporidial infections are now considered as one of the most common non-viral and non-bacterial causes of diarrhoea in humans and livestock [4].
The hotel's water supply was monitored daily for residual chlorine and faecal coliforms, and samples were collected periodically for bacterial and viral testing.
As a consequence, viral populations are heterogeneous and dynamic structures composed by ensembles of different genomes evolving in response to environmental alterations.
However, nearly half of the patients have distinctive morphological changes designated as cholestatic viral hepatitis.
The cases of jaundice detected during the survey were examined\interviewed by senior physicians for epidemiological information and risk factors of viral hepatitis.
Standard culture techniques detected bacterial, viral and parasitic enteropathogens in 1714 (60 %) diarrhoeal children, which included mixed pathogens in 257 (9 %) patients.
The assumption that the epidemic processes have ended before the end of the experiment may be justified for viral infections with relatively fast transmission dynamics.
The viral titres were averaged for all mice tested.
