Final answer:
Katrina's ignorance of her STI could be due to her being asymptomatic, a common factor in many STIs.
Step-by-step explanation:
A variety of factors can contribute to a person's ignorance of their STI, but in the case of Katrina, the main contributor would be that she is asymptomatic. Many STIs, including gonorrhea, can be present in the body without causing any noticeable symptoms. This can lead individuals to be unaware of their infection and delay seeking treatment. Other factors such as social taboos, inconsistent symptoms, and lack of mandatory reporting also make it difficult to estimate the true prevalence of STIs.