Severe Acute Respiratory Syndrome (SARS) Severe acute respiratory syndrome (SARS) is a viral respiratory disease caused by a SARS-coronavirus While SARS cases were detected as early as November 2002 as part of an outbreak that emerged in China and subsequently spread to 28 other countries, the pathogen causing the disease was identified as a coronavirus at the end of February 2003
Coronavirus - World Health Organization (WHO) Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment However, some will become seriously ill and require medical attention
Tracking SARS-CoV-2 variants - World Health Organization (WHO) It remains critical that global systems to detect signals of potential variants of interest (VOIs) or variants of concern (VOCs) and rapidly assess the risk posed by SARS-CoV-2 variants to public health are maintained, and data are shared, according to good principles and in a timely fashion
Coronavirus disease (COVID-19) COVID-19 is a disease caused by the SARS-CoV-2 coronavirus There are a range of signs and symptoms, but hte most common symptoms reported for currently-circulating variants are fever, chills, and sore throat
Coronavirus disease (COVID-19): How is it transmitted? We know that the disease is caused by the SARS-CoV-2 virus, which spreads between people in several different ways Current evidence suggests that the virus spreads mainly between people who are in close contact with each other, for example at a conversational distance The virus can spread from an infected person’s mouth or nose in small liquid particles when they cough, sneeze, speak, sing
Seguimiento de las variantes del SARS-CoV-2 Todos los virus cambian con el paso del tiempo, y también lo hace el SARS-CoV-2, el virus causante de la COVID-19 La mayoría de los cambios tienen escaso o nulo efecto sobre las propiedades del virus Sin embargo, algunos cambios pueden influir sobre algunas de ellas, como por ejemplo su facilidad de propagación, la gravedad de la enfermedad asociada o la eficacia de las vacunas, los
COVID-19 epidemiological update – 14 March 2025 In this edition, we include: SARS-CoV-2 test positivity trends at the global and regional levels The COVID-19 morbidity and mortality update at the global and regional levels An update on hospitalizations and ICU admissions An update on the SARS-CoV-2 variants of interest (VOI) and variants under monitoring (VUM)
WHO Scientific advisory group issues report on origins of COVID-19 The WHO Scientific Advisory Group for the Origins of Novel Pathogens (SAGO), a panel of 27 independent, international, multidisciplinary experts, today published its report on the origins of SARS-CoV-2, the virus responsible for the COVID-19 pandemic