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Mass Vaccination with BCG.
—Mass vaccination is to be carried out throughout Ecuador. Up to now, more than 150,000 vaccinations given to children have resulted in negative reactions to the tuberculin test (Mantoux). The vaccination campaign is directed by Dr. Jorge A. Higgins of Ecuador. Swiss and North American doctors are also participating in the campaign.
ECUADOR. JAMA. 1951;147(1):78. doi:10.1001/jama.1951.03670180084025
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