Ticks and the science of their bite!
As summer begins, scientists are paying close attention to the growing number of ticks found across North America. Warmer temperatures, shorter winters, and changing habitats have allowed tick populations to expand into new regions, increasing the risk of tick-borne illnesses. Unlike mosquitoes or venomous insects, ticks do not harm humans through venom. Instead, they can transmit disease-causing bacteria, viruses, and parasites through their bite. One of the most common is Borrelia burgdorferi, the bacterium responsible for Lyme disease.
Once transmitted, Lyme disease can cause symptoms such as fever, fatigue, headaches, and a characteristic bull's-eye rash. If left untreated, the infection can spread to the joints, heart, and nervous system. Scientists continue to study how these bacteria interact with the immune system and why some individuals experience long-term symptoms even after treatment. Fortunately, when diagnosed early, Lyme disease can usually be treated successfully with antibiotics such as doxycycline. Researchers are also developing improved diagnostic tests and exploring new vaccine technologies to help prevent future infections. As tick populations continue to rise, ongoing research remains critical to understanding and reducing the impact of these diseases on public health.
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