During the next 18 months, The Seattle Biomedical Research Institute and the PATH Malaria Vaccine Initiative will be asking people in Seattle to volunteer to be exposed to the deadliest form of malaria, in order to help them test the effectiveness of more types of vaccines.

With more than 70 scientists focused only on malaria, SBRI develops one of the largest malaria research programs in the United States.

Through this experiment, scientists want to find out which vaccines should be abandoned due to ineffectiveness and which ones should be recommended as very effective.

"We're particularly excited by the center's location in Seattle, a community where many people have an interest in global health issues and, as a result, are willing to volunteer for such an important cause -- to help save the lives of young children in some of the world's poorest countries," said Dr. Christian Loucq, Malaria Vaccine Initiative director, according to Fox News.

Malaria is the world’s most important tropical parasitic disease and is spread by mosquitoes. Each year, there are 300-500 million malaria infections, of which 1 million lead to death. More than 75 percent of these deaths occur in African children, SBRI informs on its website. Nearly 40 percent of the world’s population lives in affected regions. Symptoms of malaria include fever, shivering, pain in the joints, headache and vomiting.

Seattle volunteers will be paid more than $2,000 to let themselves bitten by malaria-carrying mosquitoes. The first symptoms usually appear within nine to 11 days, and the volunteers will be treated in the very early stage of the disease, once the parasites show in their blood.

Dr. Patrick Duffy, head of the Seattle Biomedical Research Institute's malaria research programs, thinks that people who will volunteer will not do it so much for the money, but because they really want to do something good for the world.

"I don't think most people would volunteer for this unless they felt like they were doing it for a larger purpose," Duffy said, according to Fox News.