Symptoms can be mild to severely debilitating, and affect someone’s capacity to work, perform their daily activities or do exercise These particles range from larger respiratory droplets to smaller aerosols However, how sick a person gets depends on many things, including their overall health Also, since viruses can evolve, their severity may change Who works with global experts to monitor these changes. Who fact sheet on shingles (herpes zoster), including key facts, risk factors, symptoms, transmission, diagnosis, treatment and who response.
Mononucleosis, often called glandular fever, mono or the kissing disease, is a common illness, especially among teens and young adults. Who fact sheet on dengue, providing information on symptoms, diagnostics and treatment, global burden, transmission, risk factors, prevention and control and who's work in this area. Who fact sheet on chronic obstructive pulmonary disease (copd) provides key facts and information on symptoms, diagnosis and treatment, risk factors and who response. Includes sections on symptoms, causes, diagnosis, treatment and care and who's work in this area.
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