[1] CDCP, Off Director, Div Viral & Rickettsial Dis, Natl Ctr Infect Dis,US Dept Hlth & Human Serv, Atlanta, GA 30333 USA
[2] CDCP, Resp & Enter Viruses Branch, Div Viral & Rickettsial Dis, Natl Ctr Infect Dis,US Dept Hlth & Human Serv, Atlanta, GA 30333 USA
[3] US Dept Hlth & Human Serv, Program Epidemiol, Off Publ Hlth, Indian Hlth Serv Headquarters, Albuquerque, NM USA
[4] Indian Hlth Serv, US Dept Hlth & Human Serv, Rockville, MD USA
[5] CDCP, Alaska Nat Tribal Hlth Consourtium, US Dept Hlth & Human Serv, Anchorage, AK USA
[6] CDCP, Arctic Invest Program, Natl Ctr Infect Dis, US Dept HHS, Anchorage, AK USA