X1000306-1962-63_Part01 — Page 37

FIGURE I

CONVERSION RATE OF ANTIBODIES-POLIOMYELITES 1963

100%

50%

pre-vaccinalipoa

post-vaccination

TABLE 27

ISOLATION OF OTHER ENTEROVIRUSES-–1962

Nature of specimen

Number exambud

C.S.F.

96

946

Throat swabs (throat

washing)

TO

Brain Tissus

5

Facces

103

19

90

2 L 3

Negative Positive

Virus isolared

ᄆ

Q

0

13

Coxsackie A 9 in 1 case Coxsackie B 2 in 1 case

B 3 in 2 cases

B 5 in 1 case

ECHO typs t ja 1 case

7 la 2 cases

Unidentified

14 in 1 caso

4 Casts

262. From time to time throat washings from suspected cases of in- Auenza are investigated to ascertain the prevalent strain. There were twelve positive isolates obtained during the year which were antigenically identical with the A2/57 (A/Asian/57) strain.

Vaccine Production

263. The Vaccine Laboratory prepared and issued the following quantities of vaccine during the year.

Vaccine

Anti-smallpox vaccine

Тура 1

Type 2

Тури 3

261. The results of routine diagnostic examinations carried out by the Virus Laboratory on specimens received for virus isolations and serological studies are summarized in Tubles 26 and 27.

TABLE 26

ISOLATION OF POLIOVIRUS, 1963

Nature of

Number specimien examined

Positive Poliovirter

Negative Total

Type

Type 1 Type III

Facces

448

182

166

107

14

•

24

Clinicel CusES |

Throat swabs C.S.F.

36

32

1

14

21

Brain Tissues

B

3

1,759

1,503

257

219

13

*T*

20

15

60

Contact Cases Faces

Convalescent

Faeces

Prepared

Issued

44,292 ml.

38,854 ml.

Anti-rabies vaccine 2%

43,050 ml.

45,000 ml.

Anti-rabies vaccine 4%

37,150 mL

38,170 ml.

Anti-typhoid-paratyphoid vaccine (adult)

,༥,

$5,670 ml,

Anti-typhoid-paratyphoid vaccine (children)

49,600 ml. 2.308.950 ml.

68.400 ml.

11,900 ml. 3,065,600 ml. 200 ml.

Anti cholera vaccine Anti-plague vaccine

Autopsies

264. Pathologists from the Institute also carried out postmortems al the Queen Mary Hospital and Kowloon Hospital, including medico-legal cases dying in these hospitals. During the year, 421 such autopsies were performed.

265. Technicians from the Institute undertake the routine post- mortem examination for plague in rodents sent to the Public Mortuaries

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