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.
Causes of malaria. Malaria is caused by the plasmodium parasite. The parasite can be spread to humans through the bites of infected mosquitoes. There are many different types of plasmodium parasite, but only five types cause malaria in humans. These are: 1  Plasmodium falciparum â mainly found in Africa, it is the most common type of malaria parasite and is responsible for most malaria deaths worldwide. 2  Plasmodium vivax â mainly found in Asia and South America.