例文
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- Laboratories are still looking for improved methods to detect these pathogenic viruses.
- This is the Poxvirus family, which comprises highly pathogenic viruses that infect vertebrates.
- Pathogenic viruses cause diseases such as influenza, yellow fever and AIDS.
- Multiplicity reactivation has also been demonstrated in numerous pathogenic viruses.
- In addition, feces may contain pathogenic viruses, protozoa and parasites.