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Health

Surge of Leprosy Cases in the US

Experts Warn Leprosy Isn’t Ancient History as Cases Surge in The US

What is leprosy and why is it resurfacing in the US?

Leprosy is caused by two different but similar bacteria – Mycobacterium leprae and Mycobacterium lepromatosis – the latter having just been identified in 2008. Leprosy, also known as Hansen’s disease, is avoidable. Transmission among the most vulnerable in society, including migrant and impoverished populations, remains a pressing issue.

This age-old neglected tropical disease, which is still present in more than 120 countries, is now a growing challenge in parts of North America.

Leprosy is beginning to occur regularly within parts of the southeastern United States. Most recently, Florida has seen a heightened incidence of leprosy, accounting for many of the newly diagnosed cases in the US.

The surge in new cases in central Florida highlights the urgent need for health care providers to report them immediately. Contact tracing is critical to identifying sources and reducing transmission.

Traditional risk factors include zoonotic exposure and having recently lived in leprosy-endemic countries. Brazil, India and Indonesia have each noted more than 10,000 new cases since 2019, according to the World Health Organization data, and more than a dozen countries have reported between 1,000 to 10,000 new cases over the same time period.

Why was leprosy stigmatized in biblical times?

Evidence suggests that leprosy has plagued civilization since at least the second millennium BCE. From that time until the mid-20th century, limited treatments were available, so the bacteria could infiltrate the body and cause prominent physical deformities such as disfigured hands and feet. Advanced cases of leprosy cause facial features resembling that of a lion in humans. Many mutilating and distressing skin disorders such as skin cancer

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