Chancroid is a sexually transmitted bacterial infection caused by Haemophilus ducreyi. It is rare in Ontario. Symptoms can include painful genital ulcers and painful and swollen regional lymph nodes. Symptoms appear up to two weeks after exposure. Having chancroid can increase the risk of HIV spread. Chancroid can be prevented through safer sex practices and treated with antibiotics.
PHO Rounds: Tuberculosis Contact Investigation: Principles and practice
This PHO Rounds will review the principles of TB contact investigation, including transmission risk assessment, prioritizing follow-up based on the source case’s likely infectiousness, the nature of the exposure(s), and factors that increase immunologic vulnerability of exposed individuals to TB disease.