As of mid-July 2026, the United States is experiencing a significant and concerning surge in Cyclospora infections. With current estimates for 2026 already surpassing the previous record set in 2019, this parasitic illness continues to pose a substantial public health challenge, particularly during the peak summer months when outbreaks are most prevalent. Understanding these trends is crucial for public health officials and consumers alike.
Our chart, "US Cyclospora Infections by Year (2019-2026)," visually tracks this alarming trajectory. It highlights an estimated 5,000 Cyclospora cases for 2026 as of July 15, a stark increase from the 2019 peak of 4,700 reported infections. This data underscores a worrying upward trend in reported cases across the nation, indicating a potentially record-breaking year for Cyclospora.
It is important to note the nuances within the data presented. The estimated 2026 figures incorporate state-level reports, which contribute to a higher total compared to the CDC's confirmed count of 1,645 as of July 13. Additionally, data for 2025 is current as of September 16, 2025, and comprehensive data for 2024 was not available, reflecting the dynamic and sometimes fragmented nature of public health reporting.