4Center for Diseases Control and Prevention. Measles outbreak among internationally adopted children arriving in the United States, February-March 2001[J]. MMWR, 2002,(51):1115-1116.
5Chen LH, Barnett ED, Wilson ME. Preventing Infectious Diseases during and after International Adoption.[J] Ann Intern Med. 2003, (139):371-378.
6Center for Diseases Control and Proevention. Multistate Investigation of Measles Among Adoptees from China-April 9, 2004[J]. MMWR. 2004,(53):309-310.
7MK Hostetter, DE Johnson. Immunization status of adoptees from China, Russia, and Eastern Europe [J]. Pediatr Res, 1998,43 (1): 147.
8Miller LC, Comfort K, Kely N. Immunization status of interna- tionally adopted children [J]. Pediatrics, 2001,108(4):1050-1051.
9Ryan ET, Kain KC. Health advice and immunizations for travelers[J]. N Engl J Med,2000,342(23):1716-1725.