Our expert says:
Yes he can take doxycycline Start 2 days before, continue during exposure and for 4 weeks thereafter.
Just ask his GP/pharmacist if the heart condition would exclude him from using Malanil - which may be easier to take. ( He can't take it if he is on Warfarin)
Anopheles mosquitoes bite at nights, with peak biting between 10pm and 4am and malaria transmission occurs at these hours. Ensure that he takes personal protective measures against mosquito bites at nights. Remaining in well-screened areas, using mosquito nets, and wearing clothes that cover most of the body are some simple but effective measures. In addition, mosquito repellents like N,N diethylmetatoluamide (DEET) can be used. It is better to have a pyrethrum-containing space spray to use in living and sleeping areas during evening and night hours.
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