<p>Because Leishmania is transmitted to humans when sand flies feed on humans, Jesus Valenzuela of the National Institutes of Health in the U.S. proposes to develop a novel vaccine against salivary proteins of sand flies with the aim to induce a strong immune response against the parasite.</p>


Because Leishmania is transmitted to humans when sand flies feed on humans, Jesus Valenzuela of the National Institutes of Health in the U.S. proposes to develop a novel vaccine against salivary proteins of sand flies with the aim to induce a strong immune response against the parasite.