TABLE 2.
Astrovirus serotypes (deduced from genotypes) from children with gastroenteritis in Alice Springs Hospital (1981 to 1998)a
Yr | No. of astrovirus isolates or no. of samples testedb | Serotype deduced (n) | Strain(s) |
---|---|---|---|
1981 | 2 | 2 (2) | CAV2A |
1982 | 3 | 1 (1), 3 (1), 4 (1) | CAV1A, CAV3A, CAV4A |
1984 | 1 | 1 (1) | CAV1A |
1985 | 2 | 1 (1), 4 (1) | CAV1A, CAV4B |
1990 | 1 | 3 (1) | CAV3B |
1991 | 1 | 3 (1) | CAV3C |
1992 | 1 | 3 (1) | CAV3C |
1993 | 11 | 1 (11) | CAV1B, CAV1C |
1994 | 2 | 3 (1), 4 (1) | CAV3D, CAV4C |
1995 | 153 (10) | 1 (5), 2 (1), 4 (4) | CAV1D, CAV1E, CAV2B, CAV4D, CAV4E |
1996 | 111 (8) | 1 (5), 2 (3) | CAV1F, CAV2B, CAV2C |
1997 | 119 (3) | 3 (2), 4 (1) | CAV3E, CAV3F, CAV4F |
1998 | 112 (12) | 1 (7), 3 (2), 4 (3) | CAV1G, CAV3G, CAV3H, CAV4G |
In the years prior to 1995, astrovirus was identified only by electron microscopy, and those astrovirus isolates were typed. In the years not listed in the table, astrovirus was not identified. In the years 1995 to 1998, astrovirus was detected by RT-PCR. See the text for further details.
For the years 1981 to 1994, the number of astrovirus isolates identified and typed is given. For the years 1995 to 1998, the number of samples tested is given, with the number of astrovirus-positive samples detected and typed provided in parentheses.