Abstract
The experimental and epidemiologic evidence for airborne transmission of hepatitis B is inconclusive and our efforts to detect airborne HBsAg or blood in environments where hepatitis B transmission occurs have been uniformly unsuccessful. In the specific areas investigated: dialysis centers, laboratories, and dental operatories, other major routes of transmission that can explain the spread of hepatitis B invariably are present. Therefore, while airborne taansmission is theoretically possible and probably has occurred, at this time its contribution to the overfall hepatitis B problem cannot be quantitated. we fell comfortable in concluding that airborne HBV does not play a major role in hepatitis B transmission and that true airborne infections are probably rare. Because of the fine line airborne transmission from contract transmission via droplets, we feel it important to emphasize the need to take those precautions that protect against the latter. These include the use of gloves where surfaces become contaminated and masks and glasses to protect the eyes, nose and mouth where the possibility of spatter exists.
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