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  1. Pneumonia - World Health Organization (WHO)

    Nov 11, 2011 · Pneumonia is an infection of the lungs that is most commonly caused by viruses or bacteria. These infections are generally spread by direct contact with infected people. …

  2. Pneumonia in children - World Health Organization (WHO)

    Nov 11, 2022 · WHO fact sheet on pneumonia in children provides key facts and information on causes, presenting features, economic costs, treatment, prevention and WHO response.

  3. Legionellosis - World Health Organization (WHO)

    Sep 6, 2022 · Legionellosis fact sheet provides key facts and information on cause, transmission, extent of disease, symptoms and response.

  4. Pneumococcal disease - World Health Organization (WHO)

    <p>Diseases caused by &nbsp;(pneumococc) constitute a major global public health problem. Serious diseases that are often caused by pneumococci include pneumonia, meningitis and …

  5. Human metapneumovirus (hMPV) infection

    Jan 10, 2025 · It can make a few people quite sick, causing infection of the lung (pneumonia) or inflammation of the airways to the lungs (bronchiolitis, bronchitis). Symptoms of more severe …

  6. Legionellosis (Legionnaires' disease)

    Dec 23, 2016 · Legionnaires' disease is caused by exposure to a bacterium that is found in water and soil. It ranges in severity from a mild influenza-like illness to a serious and sometimes fatal …

  7. Influenza (seasonal) - World Health Organization (WHO)

    Feb 28, 2025 · WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response.

  8. Chronic obstructive pulmonary disease (COPD)

    Nov 6, 2024 · WHO fact sheet on chronic obstructive pulmonary disease (COPD) provides key facts and information on symptoms, diagnosis and treatment, risk factors and WHO response.

  9. Measles - World Health Organization (WHO)

    Nov 14, 2024 · Measles remains one of the leading causes of death among young children globally, despite the availability of a safe and effective vaccine.

  10. Pertussis - World Health Organization (WHO)

    Nov 26, 2023 · Pneumonia is a relatively common complication, and seizures and brain disease occur rarely. People with pertussis are most contagious up to about 3 weeks after the cough …