Is it possible for a non-infected person to not get infected by an STD even though they had intercourse with another individual who tested positive for an STD?

Disease Pathophysiology

Yes, mainly if the participating individuals employed the necessary protective measures to prevent the transmission of the pathogen from one individual to another. This is commonly seen in cases where the infected individual is unaware of their current infection – participating in intercourse while unknowingly being a potential source of infection. Although protective measures such as using a condom or practicing safe sex could only limit the risk for transmission to a certain point, employing such measures could precipitate such events where transmission was prevented even in situations where it was assumed to happen inevitably.

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