meningitis belt
meningitis belt
A popular term for a region of sub-Saharan Africa where epidemics of group A meningococcal infection occur in cycles of± 10 yrs
单词 | meningitis belt |
释义 | meningitis beltmeningitis beltA popular term for a region of sub-Saharan Africa where epidemics of group A meningococcal infection occur in cycles of± 10 yrs |
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