Relatively high levels of antibody to human enteric coronavirus-like particles were detected in the sera from rural Aborigines in Australia. Levels were generally much lower in the sera from urban Aborigines, and extremely low to not detectable in the sera from Europeans. Antibody to coronavirus-like particles was also detected in the sera from rural blacks from South Africa, in the sera from Indonesia and Niue, and also possibly in the sera from rural villagers from Papua New Guinea, but in the latter case at only very low level.
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From Medicago, Quebec, QC (K.J.H., P.G., G.H., A.I.M., S.P., P.S., K.B., J.A., I.B., J.D., N.C., M.M.J.C., J.J.-W., N.L., S.L., A.L., A.M., E.P., J.P., A.S., L.T., J.N., M.-A.D., S.T., Y.K., B.J.W.), Dawson Clinical Research, Guelph, ON (G.W.), and Research Institute of the McGill University Health Center, Montreal (B.J.W.) - all in Canada; Hospital Militar (G.P.M.) and Fundación INFANT (F.P.P.), Buenos Aires, Clinica Mayo de Urgencias Medicas Cruz Blanca, Tucuman (C.L.), and Sanatorio Allende, Cordoba (F. Riera) - all in Argentina; the Infectious Diseases Division, Paulista School of Medicine, Federal University of São Paulo, and Azidus Brasil Pesquisa e Desenvolvimento, São Paulo (R.S.D., L.F.), Instituto de Pesquisas Clinicas L2IP, Brasilia (E.V.), and Instituto Brasil de Pequisa Clinica, Rio de Janeiro (P.G.W.) - all in Brazil; Hope Clinical, Canoga Park, CA (H.A.); Clinical and Experimental Sciences, University of Southampton and NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom (C.E.J.); the Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore (L.H.M.); and GlaxoSmithKline Vaccines, Wavre, Belgium (T.B., M.-A.C., M.K., F. Roman).
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