31.   He has also been treated repeatedly with antibiotics to combat secondary infections.

32.   His condition had seriously deteriorated Saturday but doctors said they managed to bring a secondary infection under control.

33.   If this person is bitten again, even months later, the resultant disease is dengue secondary infection.

34.   In dengue secondary infection, these antibodies are confused by the newly retrofitted dengue virus.

35.   Many do so out of concern that a patient with an untreated virus is vulnerable to a secondary bacterial infection, according to Pichichero.

36.   Sato said that so far the outbreak appears confined to the school itself and there have been no reports of secondary infections.

37.   Since Saturday they have been trying to prevent a secondary infection.

38.   Sometimes secondary infections occur, especially if the victim scratches the irritated skin.

39.   The boy developed a secondary infection and caught measles.

40.   The doctors had been trying to prevent a secondary infection since finding traces of one on Saturday.