Volume 9, Number 2—February 2003
Research
Viral Encephalitis in England, 1989–1998: What Did We Miss?
Katy L. Davison*
, Natasha S. Crowcroft*, Mary E. Ramsay*, David W.G. Brown†, and Nick J Andrews*
, Natasha S. Crowcroft*, Mary E. Ramsay*, David W.G. Brown†, and Nick J Andrews*
Table 2
Hospitalizations of viral encephalitis by diagnosis and fiscal year of admission, April 1, 1989–March 31, 1998, England
| Diagnosis | Date of admission by fiscal yr |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1989–90 | 1990–91 | 1991–92 | 1992–93 | 1993–94 | 1994–95 | 1995–96 | 1996–97 | 1997–98 | Total | |
| Exotic |
3 |
3 |
7 |
7 |
5 |
9 |
20 |
7 |
3 |
64 |
| Herpes viruses |
||||||||||
| Herpes simplexa |
138 |
163 |
170 |
175 |
172 |
168 |
120 |
147 |
166 |
1,419 |
| Varicella zoster |
8 |
17 |
13 |
8 |
8 |
6 |
94 |
99 |
80 |
333 |
| Others |
||||||||||
| Measles |
16 |
8 |
8 |
7 |
8 |
23 |
7 |
5 |
4 |
86 |
| Mumps |
12 |
5 |
2 |
3 |
1 |
0 |
2 |
3 |
2 |
30 |
| Rubella |
5 |
3 |
3 |
1 |
2 |
5 |
5 |
1 |
1 |
26 |
| LCMVb |
0 |
0 |
2 |
0 |
0 |
0 |
0 |
2 |
3 |
7 |
| Adenoviruses |
19 |
15 |
21 |
14 |
17 |
14 |
12 |
10 |
7 |
129 |
| Otherc |
47 |
75 |
56 |
51 |
62 |
48 |
58 |
46 |
37 |
480 |
| Total (%) |
248 (40) |
289 (40) |
282 (37) |
266 (37) |
275 (33) |
273 (36) |
318 (47) |
320 (48) |
303 (47) |
2,574 (40) |
| Unspecified viral infection (%) |
379 (60) |
422 (60) |
488 (63) |
461 (63) |
551 (67) |
480 (64) |
365 (53) |
351 (52) |
343 (53) |
3,840 (60) |
| Total (%) | 627 (100) | 711 (100) | 770 (100) | 727 (100) | 826 (100) | 753 (100) | 683 (100) | 671 (100) | 646 (100) | 6,414 (100) |
aHerpes simplex virus is undefined after 1995–1996 and recorded thereafter as herpes.
bLCMV, Lymphocytic choriomeningitis virus.
cBoth “other” and “unspecified” are included because both groups existed from 1995 to
1996 onward.
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Page updated: December 07, 2010
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