Read a study about how the rate of gonorrhoea has increased since pap smear guidelines moved from 1 year to 3 years. Since gonorrhoea can have no symptoms, with more years between testing there a people walking around unknowingly spreading the disease.

From a CBC story;

Researchers found:

Pap smear tests reduced by 60 per cent (from 42 to 17 per cent.)
Screening rates for gonorrhea and chlamydia — the two most common STIs in women aged 15 to 24 — decreased from 40 to 20 per cent.
"Our findings highlight an unintended and potentially harmful public health consequence of the updated Ontario cervical cancer screening guidelines," the study's authors said.

Might want to rethink the guidelines in that younger age cohort if a superbug is coming.