What term refers to an individual who has had a disease, fully recovered, but can still transmit it?

The term that best describes an individual who has had a disease, fully recovered, but can still transmit it to others is "chronic carrier." This designation applies to those who may not show any symptoms of the disease but still harbor the pathogen and can spread it to others, making them potential sources of infection. For example, someone who has recovered from a viral infection might still carry the virus in their body for a prolonged period, enabling transmission even when they feel well.

While "active carrier" might suggest someone who is currently exhibiting symptoms and transmitting the disease, this does not apply because the individual in question has fully recovered. "Latent carrier" refers to those who harbor a pathogen in a dormant state, which does not accurately encompass the concept of having fully recovered while still being capable of transmission. Lastly, "infectious host" is a broader term that could include anyone who has the capability to transmit an infection, regardless of symptom status or recovery. Thus, "chronic carrier" specifically encapsulates the scenario described in the question.