搜尋結果
On 26 November 2021, the WHO's Technical Advisory Group on SARS-CoV-2 Virus Evolution declared PANGO lineage B.1.1.529 a variant of concern and designated it with the Greek letter omicron. The WHO skipped the preceding letters nu and xi in the Greek alphabet to avoid confusion with the similarities of the English word "new" and the Chinese surname Xi.
The COVID-19 pandemic, also known as the coronavirus pandemic, is a global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in Wuhan, the capital of Hubei, China, in December 2019, before it spread to other areas of Asia, and then worldwide in early 2020.
- Pragmatic Rules
- Baltimore Group
- Clinical Characteristics
Human-infecting virus families offer rules that may assist physicians and medical microbiologists/virologists.[citation needed] As a general rule, DNA viruses replicate within the cell nucleus while RNA viruses replicate within the cytoplasm. Exceptions are known to this rule: poxviruses replicate within the cytoplasm and orthomyxoviruses and hepat...
This group of analysts defined multiple categories of virus. Groups:[citation needed] 1. I - dsDNA 2. II - ssDNA 3. III - dsRNA 4. IV - positive-sense ssRNA 5. V - negative-sense ssRNA 6. VI - ssRNA-RT 7. VII - dsDNA-RT
The clinical characteristics of viruses may differ substantially among species within the same family:
The English word "virus" comes from the Latin vīrus, which refers to poison and other noxious liquids. Vīrus comes from the same Indo-European root as Sanskrit viṣa , Avestan vīša , and Ancient Greek ἰός ( iós ), which all mean "poison".
- LinearCircularSegmented
Pneumonoultramicroscopicsilicovolcanoconiosis is the longest word in the English language. The word can be analysed as follows: This word was invented in the daily meeting from the National Puzzlers' League (N.P.L.) by its president Everett M. Smith. The word featured in the headline for an article published by the New York Herald ...
Variant (biology) In microbiology and virology, the term variant or genetic variant is used to describe a subtype of a microorganism that is genetically distinct from a main strain, but not sufficiently different to be termed a distinct strain. A similar distinction is made in botany between different cultivated varieties of a species of plant ...
Ebola, also known as Ebola virus disease (EVD) and Ebola hemorrhagic fever (EHF), is a viral hemorrhagic fever in humans and other primates, caused by ebolaviruses.[1] Symptoms typically start anywhere between two days and three weeks after infection.[3] The first symptoms are usually fever, sore throat, muscle pain, and headaches.[1] These ...
