Since May 1, 2026, More Than 1,645 Confirmed Cases of Cyclosporiasis Have Been Reported Across 34 States. More Than 5,100 Additional Cases Are Under Investigation. The Source Is Shredded Iceberg Lettuce Served at Taco Bell.
Issue 17 · CDC · July 26, 2026 · 10 min read
Since May 1, 2026, more than 1,645 confirmed cases of cyclosporiasis have been reported across 34 states. More than 5,100 additional cases are under investigation. The source is shredded iceberg lettuce served at Taco Bell. The parasite behind it is one of the most routinely missed organisms in clinical practice, and most clinicians will not think to test for it.
Read this week's review →"Since May 1, 2026, more than 1,645 confirmed cases of cyclosporiasis have been reported across 34 states. More than 5,100 additional cases are under investigation. The source is shredded iceberg lettuce served at Taco Bell. The parasite behind it is one of the most routinely missed organisms in clinical practice, and most clinicians will not think to test for it."
AI Research in Anesthesiology Grew From a Niche Interest to a Substantial Field Over Twenty Years, With a Sharp Surge After 2019. The Three Areas Driving That Growth Are Perioperative Risk Prediction, AI-Assisted Ultrasound Guidance, and Intelligent Monitoring.
In 2023, Tuberculosis Reclaimed Its Position as the World's Leading Cause of Death From a Single Infectious Agent, Surpassing COVID-19. With 10.8 Million New Cases and 1.25 Million Deaths in One Year Alone, TB Is Not a Disease of the Past.
From 1999 to 2023, Heat-Related Deaths in the United States More Than Doubled. Between 2016 and 2023, the Age-Adjusted Mortality Rate Increased by 16.8% Per Year. This Is Not a Slow Trend. It Is an Acceleration.
Across 22 Randomized Trials and Over 32,000 Patients, Semaglutide Nearly Doubled the Rate of Liver Disease Resolution. It Did Not Significantly Reverse the Scarring That Actually Determines Long-Term Outcomes.
A Father's Health Before Conception Can Alter the Development of the Placenta in His Future Child, According to a Growing Body of Animal Research.
In 2021, 4.71 Million Deaths Were Associated With Bacterial Antimicrobial Resistance Worldwide. By 2050, That Number Is Projected to Reach 8.22 Million Per Year.
In 2017, Firearms Surpassed Motor Vehicle Collisions as the Leading Cause of Death Among American Adolescents Aged 11 to 18. June is National Gun Violence Awareness Month.
In December 2023 the FDA Approved the First Therapy to Use CRISPR/Cas9 Gene Editing Technology in Humans. The Disease it Targets, Sickle Cell Disease, Has Been Treatable but Never Curable for the 100,000 Americans Living With It.
Two Outbreaks Are Active Simultaneously. One Began on a Cruise Ship Crossing the South Atlantic. The Other Is Spreading Across Eastern Democratic Republic of the Congo and Has Now Reached Uganda.
Between 2010 and 2019, Cancer Incidence Among Americans Under 50 Increased Overall, With the Steepest Rises in the 30 to 39 Age Group. Gastrointestinal Cancers Drove the Fastest Growth.
Depression and Anxiety Affect Up to One in Four Pregnancies in the United States. Pregnant People Are Less Likely to Be Screened for These Conditions Than at Any Other Point in Their Lives.
Lecanemab Slowed Alzheimer's Disease Progression by 27% at 18 Months. That Number is Real. Understanding What it Means for an Individual Patient and Family is a Different and Harder Conversation.
Fifteen Conditions Account for More Than 80% of the Global Life Expectancy Gap Between the World's Healthiest and Least Healthy Populations
Empagliflozin Started Within 72 Hours of a Heart Attack Improved Cardiac Biomarkers and Echocardiographic Parameters at 26 Weeks
A Systematic Review of 30 Studies Found That Large Language Models Can Match or Outperform Clinicians on Structured Diagnostic Tasks
Nine Years of Progress in Cardiovascular Mortality Were Reversed Between 2019 and 2022
Since May 1, 2026, More Than 1,645 Confirmed Cases of Cyclosporiasis Have Been Reported Across 34 States. More Than 5,100 Additional Cases Are Under Investigation. The Source Is Shredded Iceberg Lettuce Served at Taco Bell.
CDC
AI Research in Anesthesiology Grew From a Niche Interest to a Substantial Field Over Twenty Years, With a Sharp Surge After 2019. The Three Areas Driving That Growth Are Perioperative Risk Prediction, AI-Assisted Ultrasound Guidance, and Intelligent Monitoring.
Frontiers in Medicine
In 2023, Tuberculosis Reclaimed Its Position as the World's Leading Cause of Death From a Single Infectious Agent, Surpassing COVID-19. With 10.8 Million New Cases and 1.25 Million Deaths in One Year Alone, TB Is Not a Disease of the Past.
International Journal of Infectious Diseases
From 1999 to 2023, Heat-Related Deaths in the United States More Than Doubled. Between 2016 and 2023, the Age-Adjusted Mortality Rate Increased by 16.8% Per Year. This Is Not a Slow Trend. It Is an Acceleration.
JAMA
Across 22 Randomized Trials and Over 32,000 Patients, Semaglutide Nearly Doubled the Rate of Liver Disease Resolution. It Did Not Significantly Reverse the Scarring That Actually Determines Long-Term Outcomes.
Diabetology & Metabolic Syndrome
A Father's Health Before Conception Can Alter the Development of the Placenta in His Future Child, According to a Growing Body of Animal Research.
Frontiers in Genetics
In 2021, 4.71 Million Deaths Were Associated With Bacterial Antimicrobial Resistance Worldwide. By 2050, That Number Is Projected to Reach 8.22 Million Per Year.
The Lancet
In 2017, Firearms Surpassed Motor Vehicle Collisions as the Leading Cause of Death Among American Adolescents Aged 11 to 18. June is National Gun Violence Awareness Month.
Injury Epidemiology
In December 2023 the FDA Approved the First Therapy to Use CRISPR/Cas9 Gene Editing Technology in Humans. The Disease it Targets, Sickle Cell Disease, Has Been Treatable but Never Curable for the 100,000 Americans Living With It.
Annals of Medicine and Surgery
Two Outbreaks Are Active Simultaneously. One Began on a Cruise Ship Crossing the South Atlantic. The Other Is Spreading Across Eastern Democratic Republic of the Congo and Has Now Reached Uganda.
WHO · CDC · ECDC
Between 2010 and 2019, Cancer Incidence Among Americans Under 50 Increased Overall, With the Steepest Rises in the 30 to 39 Age Group. Gastrointestinal Cancers Drove the Fastest Growth.
JAMA Network Open
Depression and Anxiety Affect Up to One in Four Pregnancies in the United States. Pregnant People Are Less Likely to Be Screened for These Conditions Than at Any Other Point in Their Lives.
Journal of Midwifery and Women's Health
Lecanemab Slowed Alzheimer's Disease Progression by 27% at 18 Months. That Number is Real. Understanding What it Means for an Individual Patient and Family is a Different and Harder Conversation.
Alzheimer's Research and Therapy
Fifteen Conditions Account for More Than 80% of the Global Life Expectancy Gap Between the World's Healthiest and Least Healthy Populations
JAMA Network Open
Empagliflozin Started Within 72 Hours of a Heart Attack Improved Cardiac Biomarkers and Echocardiographic Parameters at 26 Weeks
European Heart Journal
A Systematic Review of 30 Studies Found That Large Language Models Can Match or Outperform Clinicians on Structured Diagnostic Tasks
JMIR Medical Informatics
Nine Years of Progress in Cardiovascular Mortality Were Reversed Between 2019 and 2022
American Journal of Preventive Medicine
Since May 1, 2026, More Than 1,645 Confirmed Cases of Cyclosporiasis Have Been Reported Across 34 States. More Than 5,100 Additional Cases Are Under Investigation. The Source Is Shredded Iceberg Lettuce Served at Taco Bell.
CDC
AI Research in Anesthesiology Grew From a Niche Interest to a Substantial Field Over Twenty Years, With a Sharp Surge After 2019. The Three Areas Driving That Growth Are Perioperative Risk Prediction, AI-Assisted Ultrasound Guidance, and Intelligent Monitoring.
Frontiers in Medicine
In 2023, Tuberculosis Reclaimed Its Position as the World's Leading Cause of Death From a Single Infectious Agent, Surpassing COVID-19. With 10.8 Million New Cases and 1.25 Million Deaths in One Year Alone, TB Is Not a Disease of the Past.
International Journal of Infectious Diseases
From 1999 to 2023, Heat-Related Deaths in the United States More Than Doubled. Between 2016 and 2023, the Age-Adjusted Mortality Rate Increased by 16.8% Per Year. This Is Not a Slow Trend. It Is an Acceleration.
JAMA
Across 22 Randomized Trials and Over 32,000 Patients, Semaglutide Nearly Doubled the Rate of Liver Disease Resolution. It Did Not Significantly Reverse the Scarring That Actually Determines Long-Term Outcomes.
Diabetology & Metabolic Syndrome
A Father's Health Before Conception Can Alter the Development of the Placenta in His Future Child, According to a Growing Body of Animal Research.
Frontiers in Genetics
In 2021, 4.71 Million Deaths Were Associated With Bacterial Antimicrobial Resistance Worldwide. By 2050, That Number Is Projected to Reach 8.22 Million Per Year.
The Lancet
In 2017, Firearms Surpassed Motor Vehicle Collisions as the Leading Cause of Death Among American Adolescents Aged 11 to 18. June is National Gun Violence Awareness Month.
Injury Epidemiology
In December 2023 the FDA Approved the First Therapy to Use CRISPR/Cas9 Gene Editing Technology in Humans. The Disease it Targets, Sickle Cell Disease, Has Been Treatable but Never Curable for the 100,000 Americans Living With It.
Annals of Medicine and Surgery
Two Outbreaks Are Active Simultaneously. One Began on a Cruise Ship Crossing the South Atlantic. The Other Is Spreading Across Eastern Democratic Republic of the Congo and Has Now Reached Uganda.
WHO · CDC · ECDC
Between 2010 and 2019, Cancer Incidence Among Americans Under 50 Increased Overall, With the Steepest Rises in the 30 to 39 Age Group. Gastrointestinal Cancers Drove the Fastest Growth.
JAMA Network Open
Depression and Anxiety Affect Up to One in Four Pregnancies in the United States. Pregnant People Are Less Likely to Be Screened for These Conditions Than at Any Other Point in Their Lives.
Journal of Midwifery and Women's Health
Lecanemab Slowed Alzheimer's Disease Progression by 27% at 18 Months. That Number is Real. Understanding What it Means for an Individual Patient and Family is a Different and Harder Conversation.
Alzheimer's Research and Therapy
Fifteen Conditions Account for More Than 80% of the Global Life Expectancy Gap Between the World's Healthiest and Least Healthy Populations
JAMA Network Open
Empagliflozin Started Within 72 Hours of a Heart Attack Improved Cardiac Biomarkers and Echocardiographic Parameters at 26 Weeks
European Heart Journal
A Systematic Review of 30 Studies Found That Large Language Models Can Match or Outperform Clinicians on Structured Diagnostic Tasks
JMIR Medical Informatics
Nine Years of Progress in Cardiovascular Mortality Were Reversed Between 2019 and 2022
American Journal of Preventive Medicine
Since May 1, 2026, More Than 1,645 Confirmed Cases of Cyclosporiasis Have Been Reported Across 34 States. More Than 5,100 Additional Cases Are Under Investigation. The Source Is Shredded Iceberg Lettuce Served at Taco Bell.
CDC
AI Research in Anesthesiology Grew From a Niche Interest to a Substantial Field Over Twenty Years, With a Sharp Surge After 2019. The Three Areas Driving That Growth Are Perioperative Risk Prediction, AI-Assisted Ultrasound Guidance, and Intelligent Monitoring.
Frontiers in Medicine
In 2023, Tuberculosis Reclaimed Its Position as the World's Leading Cause of Death From a Single Infectious Agent, Surpassing COVID-19. With 10.8 Million New Cases and 1.25 Million Deaths in One Year Alone, TB Is Not a Disease of the Past.
International Journal of Infectious Diseases
From 1999 to 2023, Heat-Related Deaths in the United States More Than Doubled. Between 2016 and 2023, the Age-Adjusted Mortality Rate Increased by 16.8% Per Year. This Is Not a Slow Trend. It Is an Acceleration.
JAMA
Across 22 Randomized Trials and Over 32,000 Patients, Semaglutide Nearly Doubled the Rate of Liver Disease Resolution. It Did Not Significantly Reverse the Scarring That Actually Determines Long-Term Outcomes.
Diabetology & Metabolic Syndrome
A Father's Health Before Conception Can Alter the Development of the Placenta in His Future Child, According to a Growing Body of Animal Research.
Frontiers in Genetics
In 2021, 4.71 Million Deaths Were Associated With Bacterial Antimicrobial Resistance Worldwide. By 2050, That Number Is Projected to Reach 8.22 Million Per Year.
The Lancet
In 2017, Firearms Surpassed Motor Vehicle Collisions as the Leading Cause of Death Among American Adolescents Aged 11 to 18. June is National Gun Violence Awareness Month.
Injury Epidemiology
In December 2023 the FDA Approved the First Therapy to Use CRISPR/Cas9 Gene Editing Technology in Humans. The Disease it Targets, Sickle Cell Disease, Has Been Treatable but Never Curable for the 100,000 Americans Living With It.
Annals of Medicine and Surgery
Two Outbreaks Are Active Simultaneously. One Began on a Cruise Ship Crossing the South Atlantic. The Other Is Spreading Across Eastern Democratic Republic of the Congo and Has Now Reached Uganda.
WHO · CDC · ECDC
Between 2010 and 2019, Cancer Incidence Among Americans Under 50 Increased Overall, With the Steepest Rises in the 30 to 39 Age Group. Gastrointestinal Cancers Drove the Fastest Growth.
JAMA Network Open
Depression and Anxiety Affect Up to One in Four Pregnancies in the United States. Pregnant People Are Less Likely to Be Screened for These Conditions Than at Any Other Point in Their Lives.
Journal of Midwifery and Women's Health
Lecanemab Slowed Alzheimer's Disease Progression by 27% at 18 Months. That Number is Real. Understanding What it Means for an Individual Patient and Family is a Different and Harder Conversation.
Alzheimer's Research and Therapy
Fifteen Conditions Account for More Than 80% of the Global Life Expectancy Gap Between the World's Healthiest and Least Healthy Populations
JAMA Network Open
Empagliflozin Started Within 72 Hours of a Heart Attack Improved Cardiac Biomarkers and Echocardiographic Parameters at 26 Weeks
European Heart Journal
A Systematic Review of 30 Studies Found That Large Language Models Can Match or Outperform Clinicians on Structured Diagnostic Tasks
JMIR Medical Informatics
Nine Years of Progress in Cardiovascular Mortality Were Reversed Between 2019 and 2022
American Journal of Preventive Medicine
Since May 1, 2026, More Than 1,645 Confirmed Cases of Cyclosporiasis Have Been Reported Across 34 States. More Than 5,100 Additional Cases Are Under Investigation. The Source Is Shredded Iceberg Lettuce Served at Taco Bell.
CDC
AI Research in Anesthesiology Grew From a Niche Interest to a Substantial Field Over Twenty Years, With a Sharp Surge After 2019. The Three Areas Driving That Growth Are Perioperative Risk Prediction, AI-Assisted Ultrasound Guidance, and Intelligent Monitoring.
Frontiers in Medicine
In 2023, Tuberculosis Reclaimed Its Position as the World's Leading Cause of Death From a Single Infectious Agent, Surpassing COVID-19. With 10.8 Million New Cases and 1.25 Million Deaths in One Year Alone, TB Is Not a Disease of the Past.
International Journal of Infectious Diseases
From 1999 to 2023, Heat-Related Deaths in the United States More Than Doubled. Between 2016 and 2023, the Age-Adjusted Mortality Rate Increased by 16.8% Per Year. This Is Not a Slow Trend. It Is an Acceleration.
JAMA
Across 22 Randomized Trials and Over 32,000 Patients, Semaglutide Nearly Doubled the Rate of Liver Disease Resolution. It Did Not Significantly Reverse the Scarring That Actually Determines Long-Term Outcomes.
Diabetology & Metabolic Syndrome
A Father's Health Before Conception Can Alter the Development of the Placenta in His Future Child, According to a Growing Body of Animal Research.
Frontiers in Genetics
In 2021, 4.71 Million Deaths Were Associated With Bacterial Antimicrobial Resistance Worldwide. By 2050, That Number Is Projected to Reach 8.22 Million Per Year.
The Lancet
In 2017, Firearms Surpassed Motor Vehicle Collisions as the Leading Cause of Death Among American Adolescents Aged 11 to 18. June is National Gun Violence Awareness Month.
Injury Epidemiology
In December 2023 the FDA Approved the First Therapy to Use CRISPR/Cas9 Gene Editing Technology in Humans. The Disease it Targets, Sickle Cell Disease, Has Been Treatable but Never Curable for the 100,000 Americans Living With It.
Annals of Medicine and Surgery
Two Outbreaks Are Active Simultaneously. One Began on a Cruise Ship Crossing the South Atlantic. The Other Is Spreading Across Eastern Democratic Republic of the Congo and Has Now Reached Uganda.
WHO · CDC · ECDC
Between 2010 and 2019, Cancer Incidence Among Americans Under 50 Increased Overall, With the Steepest Rises in the 30 to 39 Age Group. Gastrointestinal Cancers Drove the Fastest Growth.
JAMA Network Open
Depression and Anxiety Affect Up to One in Four Pregnancies in the United States. Pregnant People Are Less Likely to Be Screened for These Conditions Than at Any Other Point in Their Lives.
Journal of Midwifery and Women's Health
Lecanemab Slowed Alzheimer's Disease Progression by 27% at 18 Months. That Number is Real. Understanding What it Means for an Individual Patient and Family is a Different and Harder Conversation.
Alzheimer's Research and Therapy
Fifteen Conditions Account for More Than 80% of the Global Life Expectancy Gap Between the World's Healthiest and Least Healthy Populations
JAMA Network Open
Empagliflozin Started Within 72 Hours of a Heart Attack Improved Cardiac Biomarkers and Echocardiographic Parameters at 26 Weeks
European Heart Journal
A Systematic Review of 30 Studies Found That Large Language Models Can Match or Outperform Clinicians on Structured Diagnostic Tasks
JMIR Medical Informatics
Nine Years of Progress in Cardiovascular Mortality Were Reversed Between 2019 and 2022
American Journal of Preventive Medicine
Selected peer-reviewed publications and book contributions authored by Kameron Farhadi across clinical epidemiology, public health, and dentistry.
Chapter 29: Plasma Cleaning for Implant Surfaces to Improve Implant Success
Farhadi, K. & Romanos, G.E.
Saving Dental Implants — Wiley-Blackwell (Book Chapter)
Peer-reviewed textbook chapter examining plasma cleaning as a surface decontamination strategy for failed or failing dental implants, with a focus on clinical outcomes and implant salvage protocols.
Revisiting Recent Trends in Stroke Death Rates, United States 1999–2020
Mercy, U., Farhadi, K., Ogunsola, A., Karaye, R.M., Baguda, U., Olatunji, E., Yunusa, I., & Karaye, I.M.
Journal of the Neurological Sciences
Analysis of 21-year national mortality data characterizing shifting trends in stroke death rates across demographic groups in the United States, with implications for prevention and health policy.
Examining the Trends in Motor Vehicle Traffic Deaths in New York City, 1999–2020
Karaye, I.M., Olokunlade, T., Cevetello, A., Farhadi, K., & Kyriacou, C.M.
Journal of Community Health
Longitudinal trend analysis of motor vehicle traffic fatalities in New York City over a 21-year period, identifying demographic and temporal patterns with implications for urban traffic safety policy.
Racial, Ethnic, and Regional Disparities in Cocaine-Involved Overdose Deaths in the US, 1999–2020
Yunusa, I., Farhadi, K., & Karaye, I.M.
Journal of Racial and Ethnic Health Disparities
Examination of cocaine-involved overdose mortality trends stratified by race, ethnicity, and US region over two decades, revealing persistent and widening disparities with implications for targeted harm reduction.
Analysis of Contemporary Mortality Trends in Pulmonary Embolism, United States, 1999–2020
Ogunsola, A.S., Farhadi, K., Mercy, U.C., Elenwa, F., Karaye, R.M., Baba, M.J., Eniola, O.A., Yunusa, I., & Karaye, I.M.
Thrombosis Research
National mortality trend analysis for pulmonary embolism spanning 21 years, characterizing age, sex, and race-stratified patterns in PE-related deaths and identifying at-risk subpopulations.
Recent Trends in Fatal Unintentional Drowning Rates in the United States, 1999–2020
Karaye, I.M., Farhadi, K., Sengstock, G., Shahidullah, S., Taravella, R., & Nasir, R.
Journal of Safety Research
Epidemiological analysis of unintentional drowning fatalities across 21 years of US mortality data, identifying demographic trends and seasonal patterns to inform public safety interventions.
Trends in Nasopharyngeal Cancer Mortality in the United States, 1999–2020
Farhadi, K., Santella, A.J., & Karaye, I.M.
Community Dentistry and Oral Epidemiology
Trend analysis of nasopharyngeal cancer mortality across 21 years of national data, examining race, sex, and age disparities in disease burden with relevance to oral and head-and-neck oncology.
Trends in Lip, Oral Cavity, and Pharyngeal Cancer Mortality in the United States, 1999–2019
Farhadi, K., Rojanaworarit, C., Bhurosy, T., Olokunlade, T., & Karaye, I.M.
Journal of Oral Pathology & Medicine
Comprehensive mortality trend analysis for lip, oral cavity, and pharyngeal cancers over a 20-year period, stratified by demographic subgroup, highlighting the growing burden of oropharyngeal malignancies.
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