21.   Health officials think those who attended the camp may have spread the virus when they returned home.

22.   Holland speculated people may be spreading the virus by sharing straws to snort cocaine.

23.   Household contact, like sharing razor blades, can spread the virus, as can sharing straws or rolled-up bills during cocaine use.

24.   If so, it infects both sides, and Democrats say that Newt Gingrich first spread the virus.

25.   In both Africa and the rural South, a lack of education about how the virus is spread has allowed it to flourish.

26.   In summarizing the results, it must be understood that there are two ways that insects can spread a virus.

27.   In some other areas, children were kept home from school to keep from spreading the virus.

28.   Intravenous drug users spread the virus among themselves by sharing needles, and pass it on to their partners through sexual contact.

29.   Individuals can avoid contracting or spreading the virus simply by not opening the attachment that accompanies the e-mail.

30.   It is those sometimes-intriguing subject lines that entice people to open SirCam-laden attachments and spread the virus, Gullotto said.