Summer brings warm weather — and more pests — including the assassin bug, also known as the “kissing bug,” an insect whose bite can lead to serious illness. Though often unnoticed, this bug poses a growing health concern in many parts of the U.S.

Experts warn that “when they bite, they usually defecate on the site,” allowing parasites to enter the body and potentially cause Chagas disease, a dangerous and sometimes fatal infection. Early symptoms may include “headache, fever, rashes, unexplained fatigue, and vomiting,” but many infected people show no clear signs until serious heart problems develop later.

Assassin bugs are found across much of the United States, particularly in southern regions. They often hide “in gardens, under porches, and sometimes inside homes,” making accidental contact more likely during summer months. Keeping yards clean, sealing cracks, and removing debris can help lower the risk of infestation.

If bitten, experts recommend seeking medical care immediately. A blood test can detect infection early, which is critical for successful treatment. Prompt diagnosis can prevent long-term complications and reduce the risk of severe illness.

Awareness is the most effective defense. Knowing where these insects live, how they spread disease, and what symptoms to watch for can help protect individuals, families, and pets. As health officials stress, “Awareness, not fear, is the best protection.”