The cost to build a septic tank system varies widely, depending on your location. According to SepticTankGuide.com, a standard or conventional gravity system for a 3-bedroom home on a level site with good soil would likely cost from $1,500 to upward of $4,000.
Malaria is spread by the bite of an infected Anopheles mosquito. With certain malaria species, dormant forms can be produced which may cause relapses of malaria months to years later. Malaria may also be transmitted by transfusion of blood from infected people or by the use of contaminated needles or syringes.
The only way to prevent further relapses of P. vivax is through the use of another medication, called primaquine. It is not known exactly how primaquine works, but it seems able to kill the hypnozoite dormant stages of P. vivax (and P. ovale, another form of malaria which also can cause recurrence) and thus prevent recurrence.