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Prenatal environmental factors and parental mental health may be associated with a risk of autism, according to an analysis conducted by researchers at the Aarhus University in Denmark, Johns ÎÚÑ»´«Ã½ and the Centers for Disease Control and Prevention.

For years, researchers have debated how to define the standard of medical care that should be provided to research subjects during a study, especially in developing countries where the best methods of medical care are not available to the population at large. The debate intensifies when wealthy countries sponsor such studies in developing countries.

The Center for Public Health Preparedness and MidAtlantic Public Health Training Center are sponsoring a two-day conference on emergency preparedness for corporate employers.

TWO NEW RETROVIRUSES—TRANSMITTED FROM ANIMALS—IDENTIFIED