Definition Viruses (singular: virus) are the smallest, infectious particles and also parasites, i.e. living organisms that cannot reproduce independently without a host organism. On average, a virus particle is between 20 and 400 nm in size, many times smaller than human cells or bacteria or fungi. Structure of viruses The structure of viruses is not … Viruses
Reproduction mechanism of viruses In addition, the virus is able to multiply (replicate) by introducing its DNA or RNA into the host cell. The first step is always for the virus to attach itself to the host cell. The genetic material is then introduced into the cell. There the envelope(s) are then removed (uncoating), after … Reproduction mechanism of viruses | Viruses
Known RNA viruses Of particular importance with RNA viruses are for humans: Flaviviruses include hepatitis C virus, which, just like hepatitis B virus, can cause inflammation of the liver, which is much more common and chronic than HBV, and the viruses responsible for yellow fever and dengue fever. Coronaviruses are often the trigger of gastroenteritis … Known RNA viruses | Viruses
What is the Ebola virus? The Ebola virus belongs to the so far little researched and dangerous viruses whose infection is associated with a high death rate. like conjunctivitis and develops a characteristic rise and fall in body temperature only after about a week. This leads to reddening of the skin similar to a rash … What is the Ebola virus? | Viruses
What is HIV? The Human Immunodeficiency Virus, or HIV, consists of two types: HIV 1 and HIV 2, which can be subdivided into different subtypes depending on the location of the outbreak. In all probability, HIV originates from a similar virus type. This affects chimpanzees and is called SIV, Simian Immunodeficiency Virus. The transmission and … What is HIV? | Viruses
What is the Norovirus? Norovirus is the main cause of viral diarrhoea and vomiting besides rotavirus: The virus nests in the early small intestine and causes a decline of the intestinal cells there. As a result, the intestine can no longer absorb enough water from the stool and severe diarrhoea results. However, the disease is … What is the Norovirus? | Viruses