New malaria vaccine shows promise in clinical trials

Anew malaria vaccine, which is being developed in the US, has shown promising results in early stage clinical trials, scientists say. Researchers found that high doses of the vaccine protected 12 out of 15 patients from the disease. The vaccine involves injecting live but weakened malaria-causing parasites directly into patients to trigger immunity.

 The next critical questions will be whether the vaccine is durable over a long period of time and can the vaccine protect against all strains of malaria. The results were published in the journal Science