prevalence of respiratory syncytial virus subgroups a and b in france from 1982 to 1990. | a fluorescence antibody test with monoclonal antibodies was used to determine the subgroup (a or b) of respiratory syncytial virus from infants hospitalized in caen, france, over eight consecutive epidemics from 1982 to 1990. from 1982 to 1985, 27 (30%) out of 90 frozen nasal slides were classified as subgroup a strains and 63 (70%) were classified as subgroup b. b strains predominated over a in 1983-1984 and 1984-1985. from 1985 to 1990, 284 respiratory syncytial virus field strains were reisol ... | 1991 | 2064681 |