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Coronaviridae

Coronaviridae is a family of enveloped, positive-sense, single-stranded RNA viruses. The viral genome is 26–32 kilobases in length. The particles have large, club- or petal-shaped spikes on the surface. The particles in electron micrographs look ...

                                               

Coxsackie A virus

Coxsackie A virus is a human virus. It is the cause of hand, foot, and mouth disease, Herpangina, and Bornholm disease. It is in the family Picornaviridae.

                                               

Croup

Croup is caused by a virus and leads to swelling inside the throat. This swelling causes problems with normal breathing. People with croup can have a "barking"cough, stridor, and hoarseness. Croup symptoms often get worse at night. Taking steroid ...

                                               

Cytomegalovirus

Cytomegalovirus is a Virus which people get. Its a Herpesvirus and is usually called HCMV or Human Herpesvirus 5. As with all herpesviruses, even without symptoms, the virus can still be in a person for long periods of time, even for life. Two ou ...

                                               

DNA virus

DNA viruses use DNA for their genome. An example of a DNA virus is Herpes simplex. Viruses that are not DNA viruses use RNA for their genome and are called RNA viruses.

                                               

Enterovirus

Enteroviruses are a group of viruses that usually live in the gut of humans and other mammals. Most do not cause disease there. They can cause a mild form of meningitis, which is an infection near the brain. Some members of this group of viruses, ...

                                               

Epstein–Barr virus

The Epstein–Barr virus, also called human herpesvirus 4, is one of eight viruses in the herpes family. It is one of the most common viruses in humans. EBV is best known as the cause of infectious mononucleosis glandular fever. It is also associat ...

                                               

Flaviviridae

The Flaviviridae are a family of viruses that are primarily spread through arthropod vectors. The family gets its name from Yellow Fever virus, a type virus of Flaviviridae; flavus means "yellow" in Latin. They include the following genera: Genus ...

                                               

Flavivirus

Flavivirus is a genus of the family Flaviviridae. This genus includes the West Nile virus, dengue fever virus, tick-borne encephalitis virus, yellow fever virus, Zika virus, and several other viruses which may cause encephalitis. Flaviviruses are ...

                                               

HIV

Human immunodeficiency virus is a type of virus called a retrovirus, which infects the human immune system. HIV may cause AIDS by eventually killing the white blood cells, which a healthy body uses to fight off disease.

                                               

Human papillomavirus

The Human papillomavirus is a virus that can infect the skin or mucous membranes of humans. They cause warts. Some of them may cause cancer. There are over 100 different virus types in this group. About 40 virus types can be transmitted sexually. ...

                                               

Human T-lymphotropic virus

Human T-lymphotropic virus is a virus. It is a kind of retrovirus. Human T-lymphotropic virus causes leukemia as well as other diseases. Currently, four kinds are known.

                                               

Influenza A virus subtype H5N8

H5N8 is a subtype of the Influenza A virus and is highly lethal to wild birds and poultry. H5N8 usually does not make human sick; however, seven people in Russia were found to be infected in 2021.

                                               

Nidovirales

Nidovirales is an order of viruses. It is carried by animals and humans. The order includes the families Coronaviridae, Arteriviridae, Roniviridae, and Mesoniviridae. Nidoviruses are enveloped positive-sense single-stranded RNA viruses. Their nam ...

                                               

Oncogene

An oncogene is a gene that has the potential to cause cancer. Or, equally good, an oncogene is a gene which brings about uncontrolled cell division. Oncogenes in tumor cells are often mutated or expressed at high levels. Most normal cells undergo ...

                                               

Orthomyxoviridae

The Orthomyxoviridae are a family of RNA viruses. They include five genera: Influenzavirus A, Influenzavirus B, Influenzavirus C, Thogotovirus and Isavirus. The first three genera contain viruses that cause influenza in vertebrates, including bir ...

                                               

Paramyxovirus

Paramyxoviruses are viruses of the Paramyxoviridae family of the Mononegavirales order; they are negative-sense single-stranded RNA viruses responsible for a number of human and animal diseases.

                                               

Peplomer

A peplomer is a glycoprotein spike on the outside layer of a virus. When a virus attaches to a cell, these peplomers can only attach to certain receptors on the cell. They are very important for choosing which cell it attaches to and how infectio ...

                                               

Polydnavirus

The polydnaviruses are a family of insect viruses. There are two genera: ichnoviruses and bracoviruses. The ichnoviruses occur in ichneumonid wasps and bracoviruses in braconid wasps. The genome of the virus is composed of multiple segments of do ...

                                               

Positive-sense single-stranded RNA virus

A positive-sense single-stranded RNA virus ssRNA virus) is a virus which has positive sense single stranded RNA as its genetic material. They can be positive or negative. This depends on the polarity of the RNA. The positive-sense viral RNA genom ...

                                               

Poxviridae

Poxviridae are family of large complex DNA viruses, including the vaccinia and variola viruses, that are pathogenic to humans and animals and have an affinity for skin tissue. Smallpox is in the family Poxviridae. Four genera of poxviruses may in ...

                                               

Respiratory syncytial virus

Human respiratory syncytial virus is a virus that causes lung infections. It is the major cause of lung infections and hospital visits in babies and children. There is a medicine that can help prevent the virus in babies that have not been born y ...

                                               

Retrovirus

A retrovirus is any virus which copies itself as part of the cells DNA by reverse transcribing its RNA. Since the cell cannot proofread the step in which RNA is converted back to DNA, errors often go unnoticed. This makes the exact sequence of a ...

                                               

Rhinovirus

Rhinovirus is the most common virus in humans, and the main cause of the common cold. It is called rhinovirus because it infects the nose. The symptoms are very well known, and affect the whole of the upper respiratory tract, that is, the nose do ...

                                               

RNA virus

RNA viruses are viruses that use RNA as their genetic material. In humans, well-known RNA viruses are those that cause SARS, Influenza or Hepatitis C. Viruses that are not RNA viruses use DNA for their genome and are called DNA viruses. Viruses h ...

                                               

Rotavirus

Rotavirus is a virus that causes diarrhoea. Most of the time only children who are younger than five years old get the disease. The signs of the disease are severe diarrhoea and vomiting, which start suddenly and last for two or three days. Rotav ...

                                               

Swine influenza virus

                                               

T2 phage

T2 phage is more properly called Enterobacteria phage T2. It is a virulent bacteriophage which infects Escherichia coli bacteria. It contains linear double-stranded DNA, and is covered by a protective protein coat. T2 is a tailed phage, one of a ...

                                               

Tobacco mosaic virus

The tobacco mosaic virus was the first virus to be discovered. That is to say, it was the first to be known as a virus. It is a single stranded RNA virus which infects many plants, especially tobacco and other members of the family Solanaceae. Th ...

                                               

Tulip breaking virus

Tulip breaking virus is one of five plant viruses that cause both tulips and lilies to have a different petal color effects, such as stripes or flames on an otherwise single color flower. Tulip breaking virus is in the same virus group as Tulip t ...

                                               

Variola virus

                                               

Virus

A virus is a microscopic parasite that can infect living organisms and cause disease. It can make copies of itself inside another organisms cells. Viruses consist of nucleic acid and a protein coat. Usually the nucleic acid is RNA; sometimes it i ...

                                               

Virus classification

Virus classification is the way viruses are put into groups by scientists. There are many different kinds of viruses. Scientists classify viruses to make it easier to learn about them. Classification also helps scientists to remember viruses and ...

                                               

West Nile virus

West Nile Virus is a virus that belongs to the genus Flavivirus. It causes an infectious disease called "West Nile virus disease" or just "West Nile virus." WNV mainly infects birds, but it can also infect humans, horses, dogs, bats, cats, reptil ...

                                               

Zika virus

Zika virus belongs to the virus family Flaviviridae and the genus Flavivirus. It is spread by mosquitoes from the genus Aedes, which are active during the daytime. Zika virus is named after Ugandas Zika Forest, where the virus was discovered in 1 ...

                                               

Baptismal font

A baptismal font is a permanent or semi-permanent basin where baptisms are performed. It may be small for baptism by sprinkling or pouring of water, or large for baptism by submersion under water.

                                               

Chrism

The chrism is a mixture of pure olive oil and balm. The two elements signify "fullness of grace". The chrism is blessed by a bishop on Maundy Thursday. It is used to consecrate churches, chalices, the solemn blessing of bells, baptismal fonts, et ...

                                               

Crosier

                                               

Holy Grail

The Holy Grail is an artifact from Christian mythology. According to a legend, it is the cup or plate used by Jesus at the Last Supper. It was later used to catch his blood when he had to die on the cross. According to legend, it has special powe ...

                                               

Holy water

Holy water is water that is used as part of a religion or belief. It is water that has been made pure by being blessed by a priest. In the Catholic Church it is used for Sacraments, such as Baptism.

                                               

True Cross

The True Cross is the name given to parts which are believed to be from the actual cross upon which Jesus was crucified. Empress Helena c.250–c.330 AD was the mother of Constantine, the first Christian Emperor of Rome. Christianity was legalised ...

                                               

Bahai World Centre

The Bahai World Centre is the headquarters of the Bahai Faith. It is located in Haifa, Israel on Mount Carmel. The Bahai World Centre includes the World Bahai Archive, Universal House of Justice of the Bahai Faith, International Center for adviso ...

                                               

Imam Reza shrine

Imām Rezā shrine is a complex in Mashhad, Iran. It contains the mausoleum of Imām Ridhā, the eighth Imām of Twelver Shiites. Also in the complex are the Goharshad Mosque, a museum, a library, seminaries, a cemetery, a dining hall for pilgrims, va ...

                                               

Jathera

A Jathera is a shrine constructed to commemorate common clan ancestors. Each village in the Punjab has a Jathera which can be visited by members of different surnames. Many villages have a Jathera for each clan/surname. When members of a clan for ...

                                               

Sanctuary

A sanctuary, in its original meaning, is a sacred place, such as a shrine or temple. By the use of such places as a safe haven, the term has come to be used for any place of safety. This secondary use can be a human sanctuary, such as a political ...

                                               

Stonehenge

Stonehenge is a prehistoric World Heritage Site of megaliths eight miles north of Salisbury in Wiltshire, England. It is made of a henge, with standing stones in circles. There were three main building phases, each between about 3100 BC and 1950 ...

                                               

Universal House of Justice

The Universal House of Justice is the name of a council that leads the Bahai community. It was described by the person who made the Bahai Faith, Bahaullah, in his books and letters. He called it the Supreme House of Justice. His son, `Abdul-Baha ...

                                               

Broom

A broom is a cleaning tool. It consists of stiff fibres attached to, and roughly parallel to, a cylindrical handle, the broomstick. In the context of witchcraft, "broomstick" is likely to refer to the broom as a whole. A smaller whisk broom or br ...

                                               

Dishwashing liquid

Dishwashing liquid is liquid detergent. It is used for washing dishes. It is designed not to hurt peoples skin while they are washing dishes. This liquid is useful for cleaning oil because dishwashing liquid reduces the surface tension of oil and ...

                                               

Paper towel

Paper towels is an absorbent tissue made from paper instead of cloth. Unlike cloth towels, paper towels are disposable and thrown away after use. They soak up water because they are loosely woven. This lets water travel into the paper by capillar ...

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