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U.S. Sees Widespread Rise in Cyclospora Cases With Michigan as Epicenter

Limits of genetic testing plus the parasite’s lifecycle have left investigators tracing produce supply chains without a confirmed common source.

Los expertos en salud consideran que lavar los alimentos en una mezcla de bicarbonato y vinagre se trata de una mala práctica. (Crédito: Imagen referencial creada por El Comercio MAG usando la IA de Gemini)
Los síntomas de esta enfermedad suelen tomarse a la ligera cuando realmente requieren de un tratamiento. (Crédito: Magnific / Imagen referencial)
La ciclosporiasis registra un aumento inusual de casos en EE.UU. y las autoridades aún no encuentran el origen del brote. | Crédito: Imagen referencial creada por El Comercio MAG usando la IA de Gemini
Los casos se han extendido por 43 condados de Michigan, aunque una parte importante se concentra en el sureste del estado. Monroe, Wayne, Washtenaw, Lenawee, Oakland y Shiawassee se encuentran entre las zonas con mayor número de reportes. Foto: Especial.

Overview

  • Health officials report a multistate increase in Cyclospora infections, with Michigan documenting a sharp local surge that began on June 22 and grew to more than 1,200 cases in state counts by early July.
  • Federal reports through mid-June showed 145 cases in 17 states, but many state tallies now exceed CDC totals because reporting lags and differing surveillance practices.
  • CDC, FDA and state teams are conducting epidemiologic interviews and produce tracebacks focused on items such as cilantro, onions, cucumbers and berries while local probes examine restaurant and retail clusters.
  • Investigators cannot yet link cases to a single food because Cyclospora’s lifecycle and genetic variability limit high-resolution lab matching, forcing reliance on slow, detailed patient interviews and supply-chain records.
  • Public-health guidance urges careful handwashing, thorough rinsing or cooking of fresh produce, prompt testing for prolonged diarrhea and treatment with trimethoprim–sulfamethoxazole for confirmed infections to prevent dehydration and prolonged illness.