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Californians warned of invisible disease that can cause heart attacks and strokes

Isabel Keane in New York
Chagas disease is caused by kissing bugs
Chagas disease is caused by kissing bugs (Wikimedia Commons)
  • Chagas disease, caused by a parasite transmitted by 'kissing bugs', has potentially infected between 70,000 and 100,000 Californians, often without their knowledge.
  • The illness typically lies dormant for years before manifesting as serious cardiac issues, including heart attacks or strokes, though it is curable if treated early.
  • California has the highest number of chagas disease infections in the US, partly due to its large population from countries where the disease is endemic.
  • Kissing bugs carrying the parasite are prevalent in various Californian locations, including Griffith Park, where a third of them are infected.
  • Cases are likely significantly underreported as doctors are not mandated to report the disease, leading researchers to call for its classification as endemic in the US.
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