CHICAGO (Reuters) - A vaccine targeting a deadly strain of meningitis proved to be safe and highly effective in protecting African children, researchers said on Friday, raising hope that it may help prevent epidemics that afflict many African countries.The new vaccine targets A Neisseria meningitidis, a leading cause of bacterial meningitis in Africa’s so-called “meningitis belt,” a group of 21 countries in sub-Saharan Africa.
