1.   Better understanding of animal reservoirs and vectors of infectious agents is important in anticipating and controlling emerging infections.

2.   Immediate priorities should include improving facilities to deal with infectious agents that require high level microbiological safety precautions.

3.   The possibility of HIV itself being an intestinal pathogen challenges the pathogenic relevance of other infectious agents recovered from the gastrointestinal tract of HIV infected patients.

4.   In none of the patients at stage III was an infectious agent isolated from the gastrointestinal tract.

5.   Fifteen different infectious agents wer isolated from the gastrointestinal tract of HIV infected patients at stage IV of the disease, the most frequent agent was cytomegalovirus.

6.   The crowded conditions they lived in were ideal for passing on an infectious agent.

7.   Dr Kinlen says children in densely populated urban areas are likely to have been exposed to the infectious agent and built up an immunity to it.

8.   Along with Ehrlichia bacteria and the Lyme spirochete, a third infectious agent is sometimes carried by the deer tick.

9.   Although recipients can be monitored for the infectious agents known to occur in the donor animal, unknown infectious agents are harder to spot.

10.   Although doctors have mapped the spectrum of infectious agents transmitted from human transplants, they do not know the full range of those potentially transmitted by xenografts.