Health Alert Network (HAN)
The Health Alert Network (HAN) contains public health information for medical providers, including:
- Up-to-date health alert information, delivered to your inbox and archived on the web
- An online document library on public health topics
- An online community to exchange information and ideas with colleagues
| Emergency Reporting Phone Numbers | ||
|---|---|---|
| General Information: 311 or 877-692-3647 | Bureau of Communicable Disease Reportables: 866-NYC-DOH1 (866-692-3641) | |
| Poison Control: 800-222-1222 or 212-POISONS (212-764-7667) | Terrorism Hotline: 888-NYC-SAFE (888-692-7233) | |
| Office of Emergency Management: 718-422-8700 | Chief Medical Examiner: 212-447-2030 | |
All Health Alerts and Advisories are in PDF format. You need to have Adobe Reader to read PDF files.
Alerts
- Alert #6: Protect Your Patients at Risk of Heat-Related Death During Extreme Heat
- Alert #5: Recall of Boar’s Head Deli Meat Due to Possible Contamination with Listeria monocytogenes (NYS)
- Alert #4: Protect Your Patients at Risk of Heat-Related Death During Extreme Heat
- Alert #3: Protect Your Patients at Risk of Heat-Related Death During Extreme Heat
- Alert #2: Protect Your Patients at Risk of Heat-Related Death During Extreme Heat
- Alert #1: Prepare Your Patients at Risk of Heat-Related Death: Extreme Heat Coming
Advisories
- Advisory #25: CDC Advisory: Increase in Human Parvovirus B19 Activity in the United States
- Advisory #24: Increased Oropouche Virus Activity and Associated Risk to Travelers
- Advisory #23: Discontinue Use of Ciprofloxacin for Invasive Meningococcal Disease Post-Exposure Prophylaxis
- Advisory #22: CDC Alert: Mpox Caused by Human-to-Human Transmission of Monkeypox Virus in the Democratic Republic of the Congo with Spread to Neighboring Countries
- Advisory #21: Pesticide Spraying to Prevent West Nile Virus in New York City
- Advisory #20: Carfentanil and Medetomidine in the NYC Drug Supply
- Advisory #19: Early and Increasing West Nile Virus in Mosquitoes in New York City
- Advisory #18: Pesticide Spraying to Prevent West Nile Virus in New York City
- Advisory #17: CDC Advisory: Increased Risk of Dengue Virus Infections in the United States
- Advisory #16: Legionellosis in NYC
- Advisory #15: NYC Health Department Recommendations on Destigmatizing and Improving Provider Attitudes Towards Pain in Sickle Cell Disease
- Advisory #14: Guidance During Wildfire Smoke
- Advisory #13: Tick-borne Disease Advisory
- Advisory #12: Updates on Mpox in New York City
- Advisory #11: CDC Advisory: Adverse Effects Linked to Counterfeit or Mishandled Botulinum Toxin Injections
- Advisory #10: Continued Increase in Leptospirosis Cases in New York City
- Advisory #9: Help Prevent Heat-Related Illness and Death
- Advisory #8: CDC Advisory: Increase in Invasive Serogroup Y Meningococcal Disease in the United States
- Advisory #7: CDC Advisory: Increase in Global and Domestic Measles Cases and Outbreaks: Ensure Children in the United States and Those Traveling Internationally 6 Months and Older are Current on MMR Vaccination
- Advisory #6: Prepare Patients with Asthma for Pollen Season
- Advisory #5: Increase in Pertussis Cases in New York City
- Advisory #4: Increases in Syphilis Among Females and Congenital Syphilis in New York City
- Advisory #3: Be Vigilant for Measles Cases (NYS)
- Advisory #2: COVID-19 Treatments Transition to Commercial Distribution
- Advisory #1: NYC DOHMH Recommends Masking In Healthcare and Residential Facilities
CDC's Health Alert Network (HAN)
Alerts Archive
2023
- Alert #24: Increase in Hepatitis A Diagnoses among Men Who Have Sex with Men
- Alert #18: Prepare Your Patients at Risk of Heat-Related Death: Extreme Heat
- Alert #15: Prepare Your Patients at Risk of Heat-Related Death: Extreme Heat Coming
- Alert #9: Guidance During Wildfire Smoke
- Alert #3: Increased Chikungunya Virus Activity in Paraguay and Associated Risk to Travelers
- Alert #2: Increase in Extensively Drug-Resistant Shigellosis in the United States
2022
- Alert #21: West Nile Virus: Record Number of Positive Mosquito Pools in New York City; Two Human Cases Reported
- Alert #20: Update on Poliovirus in New York City
- Alert #19: Extreme Heat Event August 8 and 9, 2022: Help Prevent Heat-Related Deaths
- Alert #17: Extreme Heat Event August 4 and 5, 2022: Help Prevent Heat-Related Deaths
- Alert #14: Extreme Heat Event July 20 and 21, 2022: Help Prevent Heat-Related Deaths
- Alert #8: Test for Legionella in Adults with Pneumonia
- Alert #3: Increases in Gonorrhea and Syphilis Among Females in New York City
2021
- Alert #34: Investigation of a Listeriosis Cluster in Brooklyn
- Alert #29: Heat Event August 25 and 26, 2021: Help Prevent Heat-Related Illness and Death
- Alert #25: Investigation of a Legionnaires’ Disease Cluster in Central Harlem
- Alert #23: Heat Event August 11-13, 2021: Help Prevent Heat-Related Illness and Death
- Alert #16: West Nile Virus: Increasing Positive Mosquito Pools and Human Cases Under Investigation in New York City
- Alert #14: Heat Event July 15 and 16, 2021: Help Prevent Heat-Related Illness and Death
- Alert #12: Heat Event July 6 and 7, 2021: Help Prevent Heat-Related Illness and Death
- Alert #11: Heat Event June 28, 2021 to June 29, 2021: Help Prevent Heat-Related Illness and Death
- Alert #7: NYC Health Departments Recommends Hepatitis A Vaccine for Persons Who Are Experiencing Homelessness, Use Drugs, or Were Recently Incarcerated, in Response to Increasing Hepatitis A Cases in These Populations
- Alert #6: Cases of Cerebral Venous Sinus Thrombosis with Thrombocytopenia after Receipt of the Johnson & Johnson COVID-19 Vaccine
2020
- Alert #38: COVID-19 Diagnostic Testing and Screening Recommendations for People Who Live or Work in New York City
- Alert #27: Heat Event August 10, 2020 to August 12, 2020: Help Prevent Heat-Related Illness and Death
- Alert #26: West Nile Virus — Detection of First Positive Mosquito Pools in 2020
- Alert #25: Heat Event July 26, 2020 to July 27, 2020: Help Prevent Heat-Related Illness and Death
- Alert #24: Help Prevent Heat-Related Illness and Death July 23
- Alert #23: Help Prevent Heat-Related Illness and Death Among Heat-Vulnerable People During the COVID-19 Pandemic
- Alert #21: Help Prevent Heat-Related Illness and Death Among Heat-Vulnerable People During the COVID-19 Pandemic
- Alert #19: Help Prevent Heat-Related Illness and Death Among Heat-Vulnerable People During the COVID-19 Pandemic
- Alert #13: Pediatric Multi-System Inflammatory Syndrome Potentially Associated with COVID-19
- Alert #12: New York City Public Health Laboratory Now Accepting Nasal Swabs and Saliva Specimens for COVID-19 Testing
- Alert #11: Current Status of SARS-CoV-2 Serologic Testing
- Alert #10: COVID-19 Updates for New York City
- Alert #9: Conserve All Personal Protective Equipment Now
- Alert #7: Guidance for Health Care Worker Self-Monitoring and Work Restriction in the Presence of Sustained Community Transmission of Coronavirus Disease 2019 (COVID-19)
- Alert #6: COVID-19 Updates for New York City
- Alert #4: COVID-19 Updates for New York City
- Alert #3: New York City Resident Diagnosed with 2019 Novel Coronavirus (COVID-19) Infection NYC Health Department Now Performing COVID-19 Testing Clarification of New CDC Testing Criteria
- Alert #2: Three New Cases of Neonatal Herpes Infection Following Ritual Jewish Circumcision
Advisories Archive
2023
- Advisory #26: CDC Advisory: Confirmed Rocky Mountain Spotted Fever among People with Recent Travel to Tecate, Mexico
- Advisory #25: CDC Advisory: Mpox Caused by Human-to-Human Transmission of Monkeypox Virus with Geographic Spread in the Democratic Republic of the Congo
- Advisory #23: CDC Advisory: Limited Availability of Nirsevimab in the United States
- Advisory #22: 2023-2024 Updated COVID-19 Vaccines Recommended for Everyone 6 Months of Age and Older
- Advisory #21: CDC Advisory: Locally Acquired Malaria Cases Identified in Florida, Texas, and Maryland
- Advisory #20: CDC Advisory in Partnership with NYS: Increased Respiratory Syncytial Virus (RSV) Activity in Parts of the Southeastern United States: New Prevention Tools Available to Protect Patients
- Advisory #19: CDC Advisory: Severe Vibrio vulnificus Infections in the United States Associated with Warming Coastal Waters
- Advisory #17: Pesticide Spraying to Prevent West Nile Virus Continues in New York City
- Advisory #16: West Nile Virus: Positive Mosquito Pools in New York City
- Advisory #14: Pesticide Spraying to Prevent West Nile Virus in New York City
- Advisory #13: Tick-borne Disease Advisory
- Advisory #12: Poisonings Related to Drinking Poppers (Alkyl Nitrites)
- Advisory #11: Legionellosis in New York State
- Advisory #10: Fungal Meningitis in U.S. Patients Who Underwent Surgical Procedures Under Epidural Anesthesia in Matamoros, Mexico
- Advisory #8: CDC Advisory: Potential Risk for New Mpox Cases
- Advisory #7: Help Prevent Heat-Related Illnesses and Death
- Advisory #6: Increase in Invasive Group A Streptococcal Infections in New York State
- Advisory #5: CDC Advisory: Outbreaks of Marburg Virus Disease in Equatorial Guinea and Tanzania
- Advisory #4: Spring is Here: Prepare Patients with Asthma for Spring Pollen Season
- Advisory #1: CDC Advisory: Outbreak of Extensively Drug-resistant Pseudomonas aeruginosa Associated with Artificial Tears
2022
- Advisory #34: Increase in Pediatric Invasive Group A Streptococcal Infections
- Advisory #33: Xylazine and Fentanyl in the New York City Drug Supply
- Advisory #32: CDC Health Update: Important Updates on COVID-19 Therapeutics for Treatment and Prevention
- Advisory #31: CDC Health Advisory: Interim Guidance for Clinicians to Prioritize Antiviral Treatment of Influenza in the Setting of Reduced Availability of Oseltamivir
- Advisory #30: Update on Managing Monkeypox in Patients Receiving Therapeutics
- Advisory #29: Increased Respiratory Virus Activity, Especially Among Children
- Advisory #28: Prescribe COVID-19 Therapeutics to Prevent Severe Disease, Hospitalization and Death This Winter
- Advisory #27: Travel-Acquired Mosquito-Borne and Enteric Diseases
- Advisory #26: Outbreak of Ebola Virus Disease in Central Uganda
- Advisory #25: CDC Advisory: Severe Manifestations of Monkeypox Among People Who Are Immunocompromised Due to HIV or Other Conditions
- Advisory #24: CDC Advisory: Increase in Severe Respiratory Illnesses Associated with Rhinoviruses and/or Enteroviruses Including EV-D68
- Advisory #23: Pesticide Spraying to Reduce Mosquito Activity and Control West Nile Virus Continues in New York City
- Advisory #22: Poisonings and Death Related to Intentional Sodium Nitrite Ingestions
- Advisory #18: CDC Advisory: Melioidosis Locally Endemic in Areas of the Mississippi Gulf Coast
- Advisory #16: Accessing Tecovirimat for People with Monkeypox
- Advisory #15: Pesticide Spraying to Reduce Mosquito Activity and Control West Nile Virus in New York City
- Advisory #13: Update on Monkeypox in New York City
- Advisory #12: CDC Advisory: Recent Reports of Human Parechovirus (PeV) in the United States — 2022
- Advisory #11: Monkeypox Transmission and Detection in New York City
- Advisory #10: Tick-borne Disease Advisory
- Advisory #9: Help Prevent Heat-Related Illness and Death
- Advisory #7: CDC Advisory: COVID-19 Rebound After Paxlovid Treatment
- Advisory #6: CDC Advisory: Monkeypox Virus Infection in the United States and Other Non-endemic Countries — 2022
- Advisory #5: Spring is Here: Prepare Patients with Asthma for Spring Pollen Season
- Advisory #4: COVID-19 Pre-Exposure Prophylaxis for Immunocompromised Patients and Treatment Updates
- Advisory #2: Paxlovid is Available for COVID-19 Treatment in New York City
- Advisory #1: New York City COVID-19 Isolation and Quarantine Updates
2021
- Advisory #39: COVID-19 Oral Antiviral Treatments Authorized and Severe Shortage of Oral Antiviral and Monoclonal Antibody Treatment Products
- Advisory #38: Omicron SARS-CoV-2 Variant Identified in New York City
- Advisory #37: Elevated Levels of Lead in Traditional Ceramic Ware
- Advisory #36: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Manhattan and Staten Island
- Advisory #35: Increase in Leptospirosis Cases in New York City
- Advisory #33: New Program Offers Compensation for Proactive Vaccination Counseling; Commissioner’s Advisory Directs Health Care Providers to Use Every Opportunity to Offer COVID-19 Vaccine Information
- Advisory #32: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn, Queens and Staten Island
- Advisory #31: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in the Brooklyn
- Advisory #30: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in the Bronx and Staten Island
- Advisory #28: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in the Bronx and Manhattan
- Advisory #27: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn
- Advisory #26: Atypical Summer Transmission of Respiratory Syncytial Birus (RSV)
- Advisory #24: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in the Bronx and Queens
- Advisory #22: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #21: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn and Queens
- Advisory #20: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #19: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #18: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Staten Island and Queens
- Advisory #17: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Bronx
- Advisory #15: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Staten Island
- Advisory #13: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #10: Tick-borne Disease Advisory
- Advisory #9: Help Prevent Heat-Related Illness and Death Among People Most At Risk of Heat-Health Impacts During the COVID-19 Pandemic
- Advisory #8: Administration of Johnson & Johnson/Janssen COVID-19 Vaccine Can Resume in New York City
- Advisory #5: Spring is Here: Prepare Patients with Asthma for Spring Pollen Season
- Advisory #4: Updated Guidance for Use of Respirators by Health Care Personnel Caring for Patients With and Without COVID-19 in Health Care Settings
- Advisory #3: Collect and Report Race and Ethnicity Data to Help Ensure Equitable Access to COVID-19 Vaccines
- Advisory #2: Select New York State Phase 1b Groups Are Now Eligible for COVID-19 Vaccination
- Advisory #1: All New Yorkers in the New York State Phase 1a Group Are Eligible for COVID-19 Vaccination
2020
- Advisory #39: Proper Use and Interpretation of SARS-CoV-2 Antigen Tests
- Advisory #37: All Point-of-Care COVID-19 Test Results Must be Reported Electronically
- Advisory #36: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn and Queens
- Advisory #35: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in the Bronx
- Advisory #34: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn and Queens
- Advisory #33: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Staten Island
- Advisory #32: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #31: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Brooklyn and Staten Island
- Advisory #30: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #29: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Queens
- Advisory #28: Pesticide Spraying Notification to Reduce Mosquito Activity and Control West Nile Virus in Staten Island
- Advisory #22: Tick-borne Disease Advisory
- Advisory #20: Updated Guidance for Health Care Personnel on Personal Protective Equipment for COVID-19 and Work Restrictions Following Exposure
- Advisory #18: COVID-19 Test and Trace Operations Begin In New York City
- Advisory #17: Advise Patients When to Seek Essential Care and Plan to Expand In-Person Patient Services
- Advisory #16: Updated Reporting Requirements for Multisystem Inflammatory Syndrome in Children Associated with COVID-19 (Formerly Pediatric Multisystem Inflammatory Syndrome)
- Advisory #15: Updated NYC Health Department Recommendations for Identifying and Testing Patients with Suspected COVID-19
- Advisory #14: Updated NYC Health Department COVID-19 Recommendations
- Advisory #8: COVID-19 Update for New York City
- Advisory #5: Spring Is Coming: Time to Prepare Patients with Asthma for Spring Pollen Season
- Advisory #1: Norovirus Prevention and Response