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The Boston Globe

World

Health workers in Pakistan press on with immunizations

LAHORE, Pakistan — Under police guard, thousands of health workers pressed on with a polio immunization program Thursday after nine were killed in Pakistan by suspected militants who oppose the vaccination campaign.

Immunizations were halted in some parts and the United Nations suspended its field participation everywhere until better security was arranged. The violence risks reversing recent progress fighting polio in Pakistan, one of three countries where the disease is endemic.

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