Abstract
References
1.
Hobbs B.C.
, &
Gilbert R.J.
(1978 ) Food Poisoning and Food Hygiene. 4th edn. Edward Arnold , London
2.
Vernon E.
(1977 ) Public Health 91 , 225
3.World Health Organization (1974 ) Foodborne Disease: Methods of Sampling and Examination in Surveillance Programmes. Technical Report Series No. 543