Mafigala a bungwe la Malawi Network of Aids Organisations ( Manaso ) amasonyeza kuti mdziko muno muli anthu pafupifupi 850 000 omwe akuyenera kumalandira mankhwala otalikitsa moyo koma mwa anthuwa , mmadera akumidzi ndimo anthu ambiri amatsatira ndondomeko .