superlethal造句

例句与造句

1. The human smallpox vaccine offered no protection to mice exposed to the superlethal virus.
2. Into that virus, a cousin of the smallpox virus, the scientists spliced a single gene that made it superlethal.
3. Buller said colleagues at the Army's biodefense institute at Fort Detrick, Md ., were planning to test the superlethal cowpox virus on mice.
4. Saudi Arabia has asked the World Health Organization ( WHO ) not to warn that travelers to Mecca may be bitten by mosquitoes carrying viruses that cause the new, superlethal dengue hemorrhagic fever.
5. It's difficult to find superlethal in a sentence. 用superlethal造句挺难的