11.   A person carrying the virus warrants our sympathy, yes, but he also carries a responsibility to his fellow man.

12.   After discovering the infected crow Saturday, public health officials began testing mosquitoes to see if any were carrying the virus.

13.   Business went on, even as Internet companies tried to stomp out the virus and educated consumers deleted the message that carried the virus.

14.   But he said the dead bird found in the Bronx provided fresh evidence that mosquitoes carrying the virus pose a threat across the city.

15.   But it found far more cause for concern than for optimism, deploring widespread ignorance about HIV and discrimination against those who carry the virus.

16.   But proponents of disclosing the test results contend that many newborns are being denied adequate medical care because their parents are unaware that they carry the virus.

17.   City dwellers are the principal victims, although Indonesian sailors traveling across the vast archipelago country have carried the virus to remote islands.

18.   City health officials said they were turning their attention to Manhattan after finding mosquitoes carrying the virus in five pools, or samples, from Central Park.

19.   Donated blood, though extensively screened for diseases such as hepatitis and HIV, may carry unknown viruses or cause side effects.

20.   Dudley and Payne hope to evade the chemical roadblock by tucking the gene- carrying virus inside a shigella bacterium.