Immune Systems Advisor

Tick-Borne Disease Guide • 2026 Update Updated: September 2026   |   Evidence review: CDC, peer-reviewed research and public-health surveillance Ticks are no longer simply an outdoor nuisance. In the United States, millions of people encounter ticks every year, while diseases and conditions associated with tick exposure include Lyme disease, Rocky Mountain spotted fever, babesiosis, ehrlichiosis, anaplasmosis, Powassan virus and alpha-gal syndrome. This 2026 guide explains what the current evidence shows, how different tick species create different risks, what symptoms to watch for, how to remove a tick safely, and how to reduce exposure. Important distinction: alpha-gal syndrome is an allergy associated with certain tick bites, not a conventional tick-borne infection. A tick bite also does not automatically mean a person has acquired an infection. ...

OneDayMD Editorial Team | Updated September 2026 Ticks are no longer simply a seasonal nuisance. In the United States, an estimated 31 million people experience a tick bite each year, and ticks can transmit bacteria, viruses and parasites responsible for multiple human diseases. One unusual consequence of tick exposure is alpha-gal syndrome (AGS) — a delayed allergy to a sugar found in most non-primate mammals that can make beef, pork, lamb and other mammalian products trigger an allergic reaction. Quick answer: A tick bite can lead to several very different health problems depending on the tick species, pathogen and geographic region. Lyme disease remains the most commonly reported tick-borne illness in the United States, but ticks can also transmit anaplasmosis, ehrlichiosis, babesiosis, Rocky Mountain spotted fever and other infections. Alpha-gal syndrome is different: it is a tick-triggered allergic condition rather than an infection . Symptoms o...