MINIMUM ENTRANCE REQUIREMENTS:  Applicants must have at least (A) five (5) years of full-time or equivalent part-time professional or technical experience in epidemiology, biology, biostatistics, toxicology, environmental science, environmental health, ecology, public health, chemistry, virology, immunology, bacteriology, microbiology, or statistics and (B) of which at least two (2) years must have been in a professional capacity or (C) any equivalent combination of the required experience and the substitutions listed below