Urban ticks surge in New York City, raising public-health concerns

A resident of a fourth-floor walk-up in Midtown Manhattan was startled by a blood-red lone star tick crawling across her sheets, prompting questions about how the parasite reached the city. Although ticks have been recorded in New York since the 1970s, recent CDC statistics reveal unprecedented numbers of emergency-room visits for tick bites nationwide, indicating a widening geographic range driven by climate change and habitat disruption.

The spread has introduced diseases such as Lyme, anaplasmosis, babesiosis, Rocky Mountain spotted fever, alpha-gal allergy and the extremely rare Bourbon virus, the latter recently diagnosed in Long Island resident Michael Larkin. Infectious-disease specialist Michael Augenbraun notes that ticks can transmit several pathogens simultaneously, complicating diagnosis and sometimes leading to severe outcomes like encephalitis or death.

With few vaccines available—only a Lyme vaccine in late-stage trials and a tick-borne encephalitis vaccine for travelers—public health advice focuses on personal protection, early detection, and, for those at high risk, prophylactic antibiotics. Pets, especially dogs, also require vigilance, as they can harbor ticks and suffer comparable health effects.