The city of New York has issued a health warning regarding the increasing severity of a "deadly disease" transmitted by rats. In 2023, human cases of leptospirosis rose to their highest levels, with transmission occurring through contact with rat urine or feces. There have been 24 reported cases in the city, which is eight times the total cases reported in the previous two decades. Reports indicate six cases of the disease so far in 2024.
New York City Mayor Eric Adams stated, "Rodents represent real health crises." When animals like rats contract leptospirosis, they may not show symptoms but can continue to transmit bacteria through their environment for periods ranging from a few months to several years.
In the health warning sent by the Deputy Commissioner of the Disease Control Division to colleagues, it was noted, "The average number of locally acquired cases from 2021 to 2023 was 15 cases per year, compared to 3 cases per year from 2001 to 2020. As of April 10, 2024, six cases have been reported this year."
Symptoms of the disease include fever, headache, chills, muscle aches, vomiting, jaundice (yellowing of the skin and eyes), and red eyes. Leptospirosis can lead to kidney failure, meningitis, liver damage, and respiratory distress.
