Mass deworming with mebendazol 500mg was made in three schools in the districts of Tan Hiep, Hon Dat and An Bien. A prior treatment survey showed a cumulative infection rate of helminth of 15.6% in the school children of which a light infection of Ascariasis, Trichuris and hookworm but high rate of mixed infection (23%) were found. The post-treatment survey showed a 10.7% of the cumulative infection and 9.2% of the mixed infection. The density of three species was light reduced. Six months after treatment, in Hon Dat where the treatment was combined with IEC, the infection rate was found 6.4%, and it was 13.3% in Tan Hiep where no IEC was made. Mass drug administration is thought to be a simple, safe and highly effective method of deworming that can be supported by both teachers and parents of school children. Periodical mass treatment will be more helpful if combined with IEC.
Helminths ; Child

There were 714 cases of dengue haemorrhagic fever and 1 death. The age of patients from 2-10 years old, none of them over 15 years old. The morbidity of III, IV degrees concentrated in Hon Dat, Tan Hiep, An Ninh, Rach Gia and also the districts that had the greatest morbidity, 56 cases of shock. The Steering Board issued a number of guideline documents and established preventive plan right at the beginning of the year with medical speciality. There were 28 cases of Japanese encephalitis, 25 cases with the age from 13 months - 5 years old, 3 cases with the age from 6-11 years old, 64% male and 36% female. The Pasteurs Institute of Ho Chi Minh City coordinated with the local authority to control the disease transmission in order to isolate virus and propagate measures of mosquito killing and hygienic methods around living area.
Dengue ; Encephalitis ; Encephalitis, Japanese