136
HONG KONG ANNUAL REPORT
The incidence of gonorrhoea remained the same, but surprisingly there was a decrease of some 160 cases of non-gonococcal urethritis; chancroid incidence increased but lympho-granuloma decreased considerably.
Penicillin continues to be the first choice for the treatment of syphilis and gonorrhoea, but in the case of syphilis the slightest manifestation of a reaction to penicillin is followed by a change to chloramphenicol. One death due to anaphylactic shock occurred in an elderly female patient following an injection of penicillin in oil.
An increase in the establishment of social hygiene visitors has resulted in greatly expanded follow-up activities.
The surveillance of cases of syphilis treated solely with peni- cillin has now been in operation for seven years. The number of persons who have been under surveillance for the whole period represents only 5% of the total cases treated. However, of these, 30% have been consistently sero-negative, 70% have had the blood titre of sero-positivity reduced and only 2% of patients have shown signs of recurrence of active disease.
Ante-natal blood tests were carried out on 53,201 women, an increase of 19,592 over the 1958 figure. The percentage_positive rate was 2.98% for general clinic cases and 2.32% for cases seen by private midwives. The figures for 1958 were 3.3% and 3.2% respectively.
Figures for cases treated at clinics over the past five years are
as follows:
!
1955
1956
1957
1958
1959
Primary syphilis
153
93
17
9
19
Secondary syphilis
34
20
7
3
9
Early latent syphilis
1,044
733
450
417
426
Late latent syphilis
2,853
2,616
2,532
2,766
2,038
Early congenital syphilis
19
19
3
7
10
Gonorrhoea
11,309
10,609
9,881
8,360
8,362
Chancroid
...
2,468
1,614
689
294
324
Lymphogranuloma venereum
249
140
178
91
53
Non-gonococcal Urethritis
869
776
800
644
481
Leprosy. There are eight out-patient centres in operation solely for the diagnosis and treatment of leprosy cases and ten sessions are held at these centres each week. In addition four other sessions
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