Morbidity and Mortality Weekly Report (MMWR)

This report describes interim 2024-2025 seasonal flu vaccine effectiveness estimates in outpatient settings and against flu-associated hospitalizations.

This report describes an increase in particulate matter lead levels in Los Angeles, California during the January 2025 fires.

This report describes significant increase in hepatitis A virus (HAV) wastewater concentrations during an HAV outbreak in Los Angeles County, California.

This report describes highly pathogenic avian influenza virus infection among two indoor cats living in homes of dairy workers.

This report describes a local public health emergency triggered by dengue cases in Puerto Rico during 2024.

This report describes evidence of recent highly pathogenic avian influenza infection among three veterinary practitioners.

This report describes the first reported case of clade Ib monkeypox virus infection in the United States.

This report describes concentrations of perfluoroalkyl and polyfluoroalkyl substances among Maui County, Hawaii employees one month after the 2023 Maui wildfires.

This report describes wildfire-associated emergency department encounters immediately after the 2025 Los Angeles County wildfires.

This report describes CDC's 2025 immunization schedule for children and adolescents aged 18 years or younger.

This report describes barriers to health care providers seeking mental health care during the COVID-19 pandemic.

This report describes CDC's 2025 immunization schedule for adults aged 19 years and older.

This report describes health center visit rates by adults with mental health disorder, substance use disorder, or both

This report describes cases of adverse health effects after ingestion of Diamond Shruumz-brand chocolate bars.

This report describes mercury exposures among workers at an Ohio electronics waste and lamp recycling facility.

This report describes CDC's updated pneumococcal conjugate vaccine recommendation for all adults aged >=50 years who are PCV-naive or who have unknown vaccination history.

This report describes an outbreak of blastomycosis among workers at a paper mill in Michigan.

This report describes an increase in Tularemia cases in 2011-2022 compared to 2001-2010.

This report describes Mycoplasma pneumoniae infections among students and staff of a large public school district in Missouri.

This report describes the percentage of people injecting illegally manufactured fentanyl by route of administration.

This report describes adults with Long COVID and reported limitations performing daily activities.

This report describes a decrease in reporting of human adenoviruses cases to the National Adenovirus Type Reporting System since the COVID-19 pandemic.

This report describes mental health treatment trends among adults.

This report describes CDC's updated recommendations for the MenB-4C vaccine to align the dosing interval and schedule with the new FDA label.

This report describes progress towards eliminating wild poliovirus type 1 in Afghanistan.

This report describes CDC's recommendation that all people aged >=65 years and people ages 6 months-64 years with moderate or severe immunocompromise receive a second 2024-2025 COVID-19 vaccine dose 6 months after their last dose.

This report describes changing trends among patients with dengue in Puerto Rico.

This report describes data from the National Violent Death Reporting System on intimate partner violence-related homicides of Hispanic and Latino people in the United States from 2003-2021.

This report describes adults with hypertension by race and ethnicity.

This report describes the percentage of New York City infants born during the recommended nirsevimab adminstration period who received nirsevimab.

This report describes an update to the recommendation for Hepatitis B vaccination in adults aged 19-59 years.

This report describes intimate partner violence among pregnant women and related outcomes.

This report describes overdose deaths where illegally manufactured fentanyls, including carfentanil, were detected.

This report characterizes waterborne disease outbreaks associated with splash pads reported to CDC during 1997-2022.

This report describes abortion rates and ratios (number of abortions per 1,000 live births) in the United States during 2013-2022.

This report describes a higher incidence rate of human parvovirus B19-associated aplastic crises among children and adolescents with sickle cell disease.

This report describes an increase in the frequency of human parvovirus B19 infections among pregnant women in Minnesota.

This report describes six cases of Rocky Mountain spotted fever among people who were exposed in Tecate, Mexico.

This report describes PrEP initiations in 37 countries as part of the United Nations Programme on HIV/AIDS.

This report describes an increase in positive human parvovirus B19 laboratory test results in 2024 compared to 2018-2019.

This report describes the percentage of adults with diagnosed chronic obstructive pulmonary disease.

This report describes trends in emergency department visits for firearm injuries between 2018-2023.

This report describes trend categories and nowcasting that provided an early indication of COVID-19 transmissions.

This report describes the percentage of eligible adults who received influenza, COVID-19, and RSV vaccines.

This report describes the percentage of nursing home residents who received a 2024-2025 COVID-19 vaccine, flu vaccines, and influenza vaccine.

This report describes an update on measles cases and vaccination coverage worldwide.

This report describes instances of positive measles immunoglobulin tests among two children in American Samoa that were later confirmed to be alternative viral etiologies.

This report describes data from two national influenza surveillance networks on antiviral treatment of hospitalized children and adolescents with influenza.

This report describes nirsevimab effectiveness in preventing RSV-associated hospitalizations among children in Alaska's Yukon-Kuskokwim Delta region.

This report describes dairy farmworkers in Colorado who were interviewed about PPE use during work activities around cows infected with highly pathogenic avian influenza.