The total number of RSV cases was 74 for the 1989 to 1990 season, 84 for 1990 to 1991, 148 for 1991 to 1992, 131 for 1992 to 1993, 135 for 1993 to 1994, 240 for 1994 to 1995, 179 for 1995 to 1996, and 109 for 1996 to 1997.
The total number of nosocomial RSV cases was 9 (12.2%) for the 1989 to 1990 season, 17 (20.2%) for 1990 to 1991, 11 (7.4%) for 1991 to 1992, 9 (6.9%) for 1992 to 1993, 13 (9.6%) for 1993 to 1994, 4 (1.7%) for 1994 to 1995, 13 (7.3%) for 1995 to 1996, and 2 (1.8%) for 1996 to 1997.
The statistical tests showed that the average proportion of nosocomially-transmitted cases of RSV was 16.5% (95% confidence interval, CI: 10.7 - 22.2) in the 2 years before the programme was implemented and 7.2% (95% CI: 4.1 - 10.2) in the 2 years after its introduction, (p=0.002).
A statistical test showed that the reduction in the rate of nosocomially-transmitted RSV cases was sustained over the 6-year post-intervention period, (p>0.0001).