crippling strain造句

• "Mice immunized with this crippled strain of salmonella were completely protected from infection, " he said.
• "It's a crippling strain on him and his family, " said John Fashanu's attorney Henri Brandman.
• A long-awaited AIDS vaccine may eventually be developed from a crippled strain of HIV, in a way similar to the development of measles and polio vaccines, a researcher said Friday.
• Polio and measles vaccines are two vaccines developed from crippled strains of the main virus, strains that did not grow as the main one and did not cause full-blown symptoms.
• He said the center will use the money to let five of its scientists spend three years researching the potential of the crippled strain of HIV, discovered in Australia in 1995.