5 June 1981

The Morbidity and Mortality Weekly Report of the Centers for Disease Control and Prevention reports that five people in Los Angeles, California, have a rare form of pneumonia seen only in patients with weakened immune systems, in what turns out to be the first recognized cases of AIDS.

The Morbidity and Mortality Weekly Report (MMWR) is a publication by the Centers for Disease Control and Prevention (CDC) in the United States. It is a vital source of public health information that provides data on various diseases, conditions, and public health topics.

The MMWR was first published in 1952 and has since become one of the most widely recognized and respected epidemiological publications globally. Its primary purpose is to share timely and reliable information about diseases and their impact on public health. The report covers a broad range of topics, including infectious diseases, chronic diseases, injury prevention, environmental health, and more.

The MMWR publishes both regular and special reports. Regular reports feature surveillance data, outbreak investigations, and analyses of public health trends. These reports often provide information on disease incidence, prevalence, and distribution, as well as recommendations for prevention and control. Special reports focus on specific public health issues or events, such as emerging infectious diseases, natural disasters, or public health emergencies.

The MMWR follows a rigorous review process to ensure the accuracy and reliability of the information it presents. The data published in the report are collected from various sources, including state and local health departments, healthcare providers, and other public health agencies. The CDC analyzes the data and collaborates with experts to develop evidence-based recommendations and guidelines.

The MMWR plays a crucial role in informing public health professionals, policymakers, and healthcare providers about the latest developments in disease surveillance, prevention strategies, and outbreak investigations. It helps guide public health decision-making and facilitates the implementation of effective interventions to protect the population’s health.

In addition to its print publication, the MMWR is freely available online to the public. The reports are regularly disseminated through the CDC’s website, email subscriptions, and social media channels, ensuring broad accessibility and widespread distribution of vital public health information.