It provides medical and hospital care for all beneficiaries of the .Federal Employees Compensation Act. It operates quarantine stations at all principal ports of entry into this country. both of ships and airplanes. for the purpose of preventing the introduction into this country of diseases from abroad. The Public Health Service has medical officers stationed at all the principal American embassies and consulates abroad for the purpose of examining and certifying .o the health status of prospective immigrants into this country. One of the major activities of the Service over the last 50 years has been the field of research. -Out at Bethesda. in the National Institutes of Health. and in field laboratories in various parts of the country. Public Health Service officers are engaged in a very elaborate and substantial program of research in the various specialties of health and medicine.
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immigrants