CDC’s Health Alert Network (HAN) is CDC’s primary method of sharing cleared information about urgent public health incidents with public information officers; federal, state, territorial, tribal, and local public health practitioners; clinicians; and public health laboratories.
CDC’s HAN collaborates with federal, state, territorial, tribal, and city/county partners to develop protocols and stakeholder relationships that will ensure a robust interoperable platform for the rapid distribution of public health information.
August 18, 2022
Since May 2022, monkeypox cases, which have historically been rare in the United States, have been identified in 18 states and territories among both persons returning from international travel and their close contacts domestically. Globally, more than 1,600 cases have been reported from more than 30 countries; the case count continues to rise daily. In the United States, evidence of person-to-person disease transmission in multiple states and reports of clinical cases with some uncharacteristic features have raised concern that some cases are not being recognized and tested.
This Health Alert Network (HAN) Health Update serves to alert clinicians to clinical presentations of monkeypox seen so far in the United States and to provide updated and expanded case definitions intended to encourage testing for monkeypox among persons presenting for care with relevant history, signs, and symptoms.
The Massachusetts Department of Public Health and the Centers for Disease Control and Prevention (CDC) are investigating a confirmed case of monkeypox in the United States.
Categories of Health Alert Network messages:
Health Alert - Requires immediate action or attention; highest level of importance
Health Advisory - May not require immediate action; provides important information for a specific incident or situation
Health Update - Unlikely to require immediate action; provides updated information regarding an incident or situation
HAN Info Service - Does not require immediate action; provides general public health information
Monkeypox cases have declined since mid-August 2022 in the United States; however, new cases-including clinically severe cases-continue to occur. While there are currently no treatments specifically approved for monkeypox, therapeutics developed for patients with smallpox have been deployed during the current outbreak. This Health Alert Network (HAN) Health Update provides clinicians and public health officials with new information about managing monkeypox in patients requiring therapeutics.
The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Update as a follow-up to a HAN Health Advisory (Outbreak of Ebola virus disease (Sudan ebolavirus) in Central Uganda) issued on October 6, 2022. This Health Update serves to inform public health departments, public health laboratories, and clinicians in the United States about the ongoing outbreak of Ebola virus disease (EVD) in Uganda caused by Sudan virus (species Sudan ebolavirus). No suspect or confirmed EVD cases related to this outbreak have been reported in the United States (U.S.) or other countries outside of Uganda to date. However, as a precaution because of increasing cases in Uganda, CDC is communicating with public health departments, public health laboratories, and healthcare workers in the United States to provide an update and raise awareness of this outbreak and the potential for importation of cases.
The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Advisory about early, elevated respiratory disease incidence caused by multiple viruses occurring especially among children and placing strain on healthcare systems. Co-circulation of respiratory syncytial virus (RSV), influenza viruses, SARS-CoV-2, and others could place stress on healthcare systems this fall and winter. This early increase in disease incidence highlights the importance of optimizing respiratory virus prevention and treatment measures, including prompt vaccination and antiviral treatment, as outlined below.
The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Advisory to emphasize the importance of following existing recommendations for maintaining and monitoring dental waterlines. Multiple outbreaks of nontuberculous Mycobacteria (NTM) infections have occurred in children who received pulpotomies in pediatric dental clinics where the dental treatment water contained high levels of bacteria. CDC provides guidelines on infection control in dental settings which contain recommendations to treat dental unit waterlines and monitor water quality. Dental providers should be familiar with these recommendations on how to properly maintain and monitor their dental equipment to ensure that dental treatment water is safe for patient care.
The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Advisory about a recently confirmed outbreak of Ebola virus disease (EVD) in Uganda caused by Sudan virus (species Sudan ebolavirus) to summarize CDC's recommendations for U.S. public health departments and clinicians, case identification and testing, and clinical laboratory biosafety considerations. No suspected, probable, or confirmed EVD cases related to this outbreak have yet been reported in the United States. However, as a precaution and to remind clinicians about best practices, CDC is communicating with public health departments, public health laboratories, and healthcare workers in the United States to raise awareness of this outbreak.
The Centers for Disease Control and Prevention (CDC) is reminding healthcare professionals seeing patients from areas affected by Hurricanes Fiona or Ian to maintain a high index of suspicion for carbon monoxide (CO) poisoning. Other people who may have been exposed to the same CO source may need to be identified and evaluated.
The signs and symptoms of CO exposure are variable and nonspecific. A tension-type headache is the most common symptom of mild CO poisoning. Other common symptoms of CO poisoning are dizziness, weakness, drowsiness, upset stomach, vomiting, chest pain, and altered mental status (confusion).
Clinical manifestations of severe CO poisoning include cardiovascular and neurological effects: tachycardia, tachypnea, hypotension, metabolic acidosis, dysrhythmias, myocardial ischemia or infarction, noncardiogenic pulmonary edema, irritability, impaired memory, cognitive and sensory disturbances, ataxia, altered or loss of consciousness, seizures, coma, and death, although any organ system might be involved.
CO poisoning can be fatal for anyone. Children, pregnant people, babies and infants, persons with sickle cell disease, older adults, and persons with chronic illness (e.g., heart or lung disease) are at particularly high risk.
The purpose of this Centers for Disease Control and Prevention (CDC) Health Alert Network (HAN) Health Advisory is to inform healthcare providers that
1. Severe manifestations of monkeypox have been observed in the United States in the current outbreak.
2. People who are immunocompromised due to HIV or other conditions are at higher risk for severe manifestations of monkeypox than people who are immunocompetent.
3. Because people with HIV-associated immunocompromise are at risk for severe manifestations of monkeypox, the HIV status of all sexually active adults and adolescents with suspected or confirmed monkeypox should be determined.
4. There are diagnostic and clinical management strategies that may help address severe manifestations of monkeypox.