Medical and scientific research services in the field of infectious disease including prophylaxis, treatment and diagnosis; Medical and scientific research services in the field of countermeasures for biological and chemical warfare agents including prophylaxis, treatment and diagnosis; pharmaceutical drug development services; pharmaceutical research services; scientific and technical consulting and research services relating to countermeasures for biological and chemical warfare agents; scientific investigations for medical purposes; scientific research; scientific research and development; professional consulting services and advice in the field of scientific research relating to biological and chemical warfare agents