YELLOW FEVER VACCINATION IN MALAYA BY SUBCUTANEOUS INJECTION AND MULTIPLE PUNCTURE. HAEMAGGLUTININ-INHIBITING ANTIBODY RESPONSES IN PERSONS WITH AND WITHOUT PRE-EXISTING ANTIBODY

YELLOW FEVER VACCINATION IN MALAYA BY SUBCUTANEOUS INJECTION AND MULTIPLE PUNCTURE. HAEMAGGLUTININ-INHIBITING ANTIBODY RESPONSES IN PERSONS WITH AND WITHOUT PRE-EXISTING ANTIBODY