TABLE 1.

Distribution of RSV subgroups and genotypes and demographic details for patients infected with RSV over three epidemic seasons from November 2001 to July 2004

Subgroup and genotype2001-2002 seasona2002-2003 seasonb2003-2004 seasonc
nd/totale (%)Age (yr [mean ± SD])n/total (%)Age (yr [mean ± SD])n/total (%)Age (yr [mean ± SD])
A30/74 (40.5)0.8 ± 0.69/187 (4.8)1.6 ± 1.283/238 (34.9)1.2 ± 0.8
    GA20/74 (0.0)0/187 (0.0)1/238 (0.4)1.1 ± 0.0
    GA529/74 (39.2)0.8 ± 0.66/187 (3.2)1.3 ± 1.182/238 (34.5)1.2 ± 0.8
    GA71/74 (1.4)0.3 ± 0.03/187 (1.6)1.9 ± 1.40/238 (0.0)
B2/74 (2.7)0.7 ± 0.545/187 (24.1)1.0 ± 0.716/238 (6.7)1.0 ± 0.9
    GB30/74 (0.0)4/187 (2.1)1.0 ± 0.90/238 (0.0)
    SAB32/74 (2.7)0.7 ± 0.50/187 (0.0)0/238 (0.0)
    BA virusf0/74 (0.0)41/187 (21.9)1.0 ± 0.716/238 (6.7)1.0 ± 0.9
    Total32/74 (43.2)0.8 ± 0.654/187 (28.9)1.1 ± 0.899/238 (41.6)1.1 ± 0.8
  • a The 2001-2002 season was from November 2001 to July 2002.

  • b The 2002-2003 season was from August 2002 to July 2003.

  • c The 2003-2004 season was from August 2003 to July 2004.

  • d n, number of confirmed cases.

  • e Total, number of suspected cases.

  • f BA viruses are strains with a 60-nucleotide insertion in the second variable region of G protein.