Malaria risk in Islamabad, Pakistan

Islamabad capital of Pakistan is receptive and vulnerable to malaria. Under favorable conditions [which are not usual] malaria transmission can occur during May to September

report on field testing of methoprene [IGR] for mosquito control [Pakistan]

A large scale field trial under natural conditions was conducted to observe biological effects of methoprene on mosquito immature and mature stages. In addition non-target invertebrates [N. T. Os] in the treated breeding places were also checked for any adverse effect. One dose of Altosid briquet formulation one briquete per 100 sq. ft. and two dosages 250 ml/hect. and 300 ml/hect. of liquid SR-10 methoprene were tested. Negligible% [less than 1%] adult mosquitoes emerging from pupae were observed during the first week after treatment with briquets or 300 ml/hect. On 18

h day of observation after treatment only 50% adults emerged from breeding places treated with 300 ml/hect. and same% from treated with briquets but on the 21

t day after treatment. Morphological abnormalities were noticed among the surviving adults, emerging between 6-15 days after treatment. Significant sex proportion distortion was also noticed among the apparent normal adults emerging between 3-12 days after treatment. Both the formulations of methoprene were found to be very safe in handling and for N. T. Os

laboratory trial on the effect of green carp, a larvivorous fish in controlling malaria vector mosquitoes

Green Carp Ctenophoringodon idella was tried in the laboratory to see its effect in reducing mosquito population and the possibility of using this fish for mosquito control programmes. It was observed that green carp devoured all different instars of both the Anopheles culcifacies and Anopheles stephensi larvae and proved as an efficient larvivorous fish

Chloroquine - resistant falciparum malaria in Pakistan

Who in vivo extended field tests to monitor the response of falciparum strains to chloroquine, the tests were carried out in Sheikhupura [October - November 1981] Jhang [November - December, 1983], and Bahawalnagar districts [December 1983 - January 1984] for Punjab province in Pakiatan. The number of cases selected and followed were 60, 60 and 33 in the districts of Sheikhupura, Jhang and Bahawalnagar respectively. The results showed that two cases were resistant at RI level in Sheikhupura, four were resistant at RI level in Jhang whereas 15 cases were resistant at RI level and one case at RII level in Bahawalnagar district. These findings underline the need for extensive monitoring to detect other resistant foci in order that efforts be implemented to eliminate such foci from the country