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Virus - Wikipedia
WEB4 days ago · A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are found in
Virus - National Human Genome Research Institute
WEB6 days ago · A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA) surrounded by a protein coat. A virus cannot replicate alone; instead, it must infect cells and use components of the host cell to make copies of itself. Often, a virus ends up killing the host cell in the process, causing damage to the host ...
Coronavirus - Wikipedia
WEB5 days ago · The earliest reports of a coronavirus infection in animals occurred in the late 1920s, when an acute respiratory infection of domesticated chickens emerged in North America. [15] Arthur Schalk and M.C. Hawn in 1931 made the first detailed report which described a new respiratory infection of chickens in North Dakota.
新型コロナウイルス（COVID-19）関連情報ページ - 厚生労働省 ...
WEBApr 26, 2024 · 2023/04/21 感染・伝播性の増加や抗原性の変化が懸念される 新型コロナウイルス（SARS-CoV-2）の変異株について （第27報）. 2023/04/20 我が国における超過死亡数および過少死亡数 （2023年1月までのすべての死因を含むデータ分析）. 2023/04/20 我が国におけ ...
A Fight About Viruses in the Air Is Finally Over. Now It’s Time ...
WEBMay 7, 2024 · After four years of fighting about it, the World Health Organization has finally proclaimed that viruses, including the SARS-CoV-2 virus that causes COVID, can be spread through the air. The ...
Viral infection - Latest research and news | Nature
WEBApr 23, 2024 · Viral infection is the invasion of the body by a small agent known as a virus. Viruses replicate inside host cells and can produce toxins that cause disease. The immune system...
Influenza - Wikipedia
WEBMay 3, 2024 · Deaths. >290,000–650,000 deaths per year [3] [4] Influenza, commonly known as " the flu " or just " flu ", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue.
SARS-CoV-2 - Latest research and news | Nature
WEB5 days ago · SARS-CoV-2 articles from across Nature Portfolio. SARS-CoV-2 is a positive-sense single-stranded RNA virus. It is contagious in humans and is the cause of the coronavirus disease 2019...
Viral evolution - Latest research and news | Nature
WEBMay 7, 2024 · Viral evolution refers to the heritable genetic changes that a virus accumulates during its life time, which can arise from adaptations in response to environmental changes or the immune...
新型コロナウイルス5類移行から1年 マスク ワクチン 生活はこう ...
WEB6 days ago · 新型コロナウイルスが感染症法上の5類に移行されて8日で1年です。行動制限などは行われなくなり、コロナ治療薬への補助などの支援策も廃止さ ...
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