DAKAR, 20 February 2014 (IRIN) - A pilot meningitis A immunization campaign targeting more than 155,000 people in Benin with a vaccine that does not require constant refrigeration has demonstrated clear benefits, enabling wider reach, more efficient administration and potential cost reduction, researchers say.

Most vaccines must be kept cold, at temperatures between 2 and 8 degrees Celsius, but the meningitis A vaccine known as MenAfriVac can be stored for up to four days at up to 40 degrees ...

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