Based on the history provided, the risk of transmission of
HIV from a scissor injury is extremely low to negligible, especially since the instrument had remained unused for 50–60 minutes before the incident.
HIV does not survive well outside the human body and loses infectivity rapidly once blood dries on surfaces.
The risk of Hepatitis B or Hepatitis C from such an exposure is also very low, though theoretically not zero if the instrument was visibly contaminated with fresh blood. Immediate wound bleeding is actually beneficial as it helps flush out contaminants.
Next Steps
Thorough washing of the wound with soap and running water is recommended.
If you have completed the Hepatitis B vaccination series, you are already well protected. No specific treatment is usually required for this type of exposure, but if there is significant concern about the source person's infection status, do consult
Health Tips
Do check viral markers for reassurance