What are the three main groups of viruses?
Based on their host, viruses can be classified into three types, namely, animal viruses, plant viruses, and bacteriophages.
What is ICTV How are viruses named?
The International Committee on Taxonomy of Viruses (ICTV) authorizes and organizes the taxonomic classification of and the nomenclatures for viruses.
What is the hierarchical virus classification system?
Lwoff, Horne, and Tournier suggested a comprehensive scheme for classifying all viruses in 1962. Their proposal used the classical Linnaean hierarchical system of phylum, class, order, family, genus and species. The complete scheme was not adopted, but animal viruses were soon classified by family, genus, and species.
What are the families of viruses?
DNA viruses
| Virus family | Examples (common names) | Group |
|---|---|---|
| 1. Adenoviridae | Canine hepatitis virus, Some types of the common cold | I |
| 2. Papovaviridae | JC virus, HPV | I |
| 3. Parvoviridae | Human parvovirus B19, canine parvovirus | II |
| 4. Herpesviridae | Herpes simplex virus, varicella-zoster virus, cytomegalovirus, Epstein–Barr virus | I |
What is a Viridae?
-viridae f pl. Used to form taxonomic names of families of viruses.
What is ICTV full?
Official name. 1.1 The official name is the International Committee on Taxonomy of Viruses (ICTV). Article 2. Status. 2.1 The ICTV is a Committee of the Virology Division of the International Union of Microbiological Societies (IUMS).
What are the four classifications of viruses?
In general, the capsids of viruses are classified into four groups: helical, icosahedral, enveloped, and head-and-tail. Helical capsids are long and cylindrical. Many plant viruses are helical, including TMV.
Which are the three main criteria used in classifying viruses into families?
The criteria used for classifying viruses into families and genera are primarily based on three structural considerations: (1) the type and size of their nucleic acid, (2) the shape and size of the capsids, and (3) the presence of a lipid envelope, derived from the host cell, surrounding the viral nucleocapsid.
What are some common viruses?
Some of the most common viral infections include:
- Common cold.
- Influenza (flu)
- Herpes.
- Chickenpox.
- Mumps.
- Human papillomavirus (HPV)
- Measles.
- Rubella.
What are the 21 families of viruses?
Reoviridae. Reovirus, rotavirus.
What are two diseases caused by viruses?
Viruses are responsible for causing many diseases, including:
- AIDS.
- Common cold.
- Ebola.
- Genital herpes.
- Influenza.
- Measles.
- Chickenpox and shingles.
- Coronavirus disease 2019 (COVID-19)
What are the 5 most common childhood illnesses?
Common Childhood Illnesses
- Common Cold. It’s not surprising that the common cold is one of the most common childhood illnesses.
- Ear Infections. Ear infections are some of the most common childhood illnesses.
- Influenza.
- Bronchitis.
- RSV.
- Hand, Foot, and Mouth Disease.
- Conjunctivitis.
- Gastroenteritis.
What is Bunya virus?
Bunyavirales is an order of single-strand, spherical, enveloped RNA viruses (formerly the Bunyaviridae family). The virus families in the Bunyavirales order that cause viral hemorrhagic fevers include Phenuiviridae, Arenaviridae, Nairoviridae, and Hantaviridae.
What family is RSV virus?
Respiratory syncytial virus (RSV) belongs to the genus Orthopneumovirus within the family Pneumoviridae and order Mononegavirales. Members of this genus include human RSV, bovine RSV and murine pneumonia virus.
How many orders of viruses are there?
Most recently, at the 28th meeting of the ICTV in March 1998 in San Diego, California, the Universal Virus Classification was adopted; this comprises three orders, 56 families, nine subfamilies, 203 genera, 30 floating genera and a total of 3954 species, strains and/or serotypes of species and tentative species.