Final answer:
The risk of HIV transmission from a single needlestick injury is low, approximately 0.3%. Preventative measures like needle exchange programs and consistent condom use are important to reduce the transmission risk. The Department of Health recommends standard precautions for healthcare workers to prevent needlestick injuries.
Step-by-step explanation:
The Department of Health does not specify a precise percentage for the chance of catching HIV from a single needlestick injury, as this risk can vary based on several factors, including the amount of virus in the source's blood and the depth of the needlestick. Generally, the risk of transmission from a needlestick injury is considered to be low. The Centers for Disease Control and Prevention (CDC) has estimated that the average risk of HIV transmission after a needlestick or cut exposure to HIV-infected blood is approximately 0.3%.
It's crucial for healthcare professionals to follow standard precautions to prevent needlestick injuries and to take immediate action in the event of exposure. Methods to prevent nonsexual transmission of HIV include harm-reduction strategies, such as needle exchange programs. Moreover, public health policies that support needle-exchange programs and the consistent use of condoms during sexual contact can greatly reduce the risk of HIV transmission.