( 10 ) 
As a consequence of vaccination the majority of 
the population are wholly or partially immune- to small 
pox. * 
Quarantine and Prevention of Disease. 
The Quarantine and Prevention of Disease Acts 
make provision for preventing introduction and spread 
of contagious and infectious diseases. 
Though fmost diseases are contagious or infec- 
tious in some way it is' usual to confine the Quarantine 
and Prevention of Disease Act to those diseases which 
are directly infectious and capable of existing in 
epidemic form- In Malaya the diseases coming under 
these acts are Plague, Cholera, Small Pox, Typhus, 
Scarlet Fever, Diphtheria, Measles, Chickenpox, 
Enteric, and Cerebro-spinal meningitis. 
Provisions are made for — 
a. the* reporting of cases of disease 
b. for the quarantine and disinfection of 
vessels 
c. for the isolation of sick and contacts 
d. for regulating movement in infected areas 
e. for the control of public places 
/. for the disinfection of persons, houses or 
materials. 
The executive officer is the health officer or- when 
there is no health officer the Medical Officer. 
Maritime Quarantine Stations. 
There are fully equipped maritime quarantine 
stations in Singapore, Penang and Port Swettenham. 
The first two have accommodation for 5,000 each, the 
last for 7,000. 
