A study led by clinical microbiologist Anne von Gottberg at the National Institute for Communicable Diseases in Johannesburg, South Africa, found that since the pneumococcal conjugate vaccine was introduced in 2009, the overall incidence of both invasive pneumococcal disease and penicillin-resistant infections has fallen in infants and in adults. The findings should encourage health officials in other low-income nations to start using the vaccine, von Gottberg said.

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