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I went to vidalista ct chewable tablets Sanaria, a company in Rockville, Maryland, has developed a malaria vaccine that has become the first in providing 100% protection against the deadly disease. The vaccine, which is called PfSPZ because its makeup is comprised of sporozoites (SPZ,) a stage of malarial parasite Plasmodium falciparum (Pf,) uses a weakened form of the malaria organism to instigate a response from the immune system.