Microbiology Lab Practice Exam

Indirect contact transmission occurs when pathogens move from a source to a new host via an inanimate object or surface, a fomite. Touching a contaminated surface is the classic example of this route. A person can acquire microbes by handling a doorknob, countertop, or shared equipment and then touching their mouth, nose, or eyes, or by contaminating their hands and transferring the organism to a mucous membrane. This differs from direct contact transmission, which requires direct physical contact with an infected person. Worm migration isn’t a typical mechanism for spreading human pathogens in this context, and saying none of the above would ignore the real fomite route. Prevent spread by thorough hand hygiene and by cleaning and disinfecting frequently touched surfaces, especially in labs and healthcare settings.