What type of mask should workers wear when coming in contact with tuberculosis patients?

When caring for patients with tuberculosis (TB), it is essential to use appropriate personal protective equipment to minimize the risk of transmission. A high efficiency particulate air filtration mask, often referred to as an N95 respirator, is specifically designed to filter out particulate matter, including airborne pathogens like Mycobacterium tuberculosis. This type of mask provides a tight fit and is capable of blocking at least 95% of very small (0.3 micron) particles.

In the context of TB, which is transmitted through airborne droplets when an infected person coughs or sneezes, this type of mask is crucial for protecting healthcare workers. Traditional masks do not have the filtration efficiency required to prevent inhalation of the bacteria. Street clothing does not provide any form of protection against airborne transmission. A sterile gown, while important in certain medical procedures, does not protect against airborne pathogens and is not designed for that purpose.

Therefore, the use of a high efficiency particulate air filtration mask is the recommended and proper choice when coming into contact with tuberculosis patients to ensure both safety and compliance with health and safety regulations regarding infectious diseases.