Archive · 6 Aug 2026
Cyclospora Outbreak in US: 11,500+ Cases, Two Deaths Reported
Many people in the United States have gotten sick from a tiny germ called Cyclospora.
Health officials have counted more than 11,500 people who got sick.
Sadly, two people died from being so sick.
The state of Michigan has the most people who got sick.
The two people who died already had serious health problems before they got sick.
Getting too dehydrated, which means the body loses too much water, may have made their sickness worse.
The CDC, a group of health experts, says the real number of sick people is probably higher than what has been reported.
It takes about six weeks for all sickness cases to be counted and reported.
So this outbreak might be even bigger than the numbers show.
Over 11,500 cases of Cyclospora illness and two deaths have been reported in a US outbreak.
Michigan has reported the highest number of illnesses in the outbreak.
Both people who died had significant underlying health conditions, and dehydration related to the infection may have contributed to their deaths.
The CDC cautions that reported numbers likely underestimate the true scale of the outbreak.
There is typically a six-week delay between illness onset and national reporting of cases.
- Who
- People in the United States affected by the outbreak, including two deceased individuals who had significant underlying health conditions; state officials and the CDC tracking and reporting the cases.
- What
- A Cyclospora outbreak that has caused more than 11,500 reported illnesses and two deaths.
- When
- Not specified in the articles; the CDC notes a typical six-week delay between illness onset and national reporting.
- Where
- United States, with Michigan reporting the highest number of illnesses.
- Why
- The cause of the outbreak is not stated; dehydration related to the infection may have contributed to the deaths of the two individuals who had underlying health conditions.
- Disease
- Cyclospora
- Reported cases
- Over 11,500
- Reported deaths
- 2
- State with most cases
- Michigan
- Health status of deceased
- Both had significant underlying health conditions
- Possible factor in deaths
- Dehydration related to the infection
- CDC reporting delay
- About six weeks between illness onset and national reporting