Dec 25, 2025 · 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 …

Nov 27, 2025 · 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 …

Oct 31, 2023 · Mpox (previously known as monkeypox) is a viral disease caused by an orthopoxvirus called monkeypox virus. It spreads mainly through close contact with someone who has mpox, …

Mar 27, 2024 · 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 …

Mar 28, 2023 · COVID-19 is the disease caused by a coronavirus called SARS-CoV-2. WHO first learned of this new virus on 31 December 2019, following a report of a cluster of cases of so-called …

Oct 9, 2024 · The Weekly Epidemiological Update provides an overview of the global, regional and country-level COVID-19 cases and deaths, highlighting key data and trends; as well as other …

Mar 17, 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 …

据推断，SARS-CoV- 2与空气中的悬浮颗粒形成团簇，降低扩散系数，同时提高在大气中的存活率和持久性。 有研究推测猫可能是SARS-CoV-2 中间宿主，因为该病毒粒子已被证明可以在猫体内有效复 …

May 28, 2025 · Since mid-February 2025, according to data available from sentinel sites, global SARS-CoV-2 activity has been increasing, with the test positivity rate reaching 11%, levels that have not …

Apr 18, 2024 · SARS-CoV-1 (the number 1 was added later to distinguish it from the recently emerged SARS-CoV-2) is a respiratory virus which can spread through the air through small infectious …