What is Virus in simple language?
A virus is a microscopic parasite that can infect living organisms and cause disease. It can make copies of itself inside another organism’s cells. Viruses consist of nucleic acid and a protein coat.
Is virus a life?
Viruses are considered by some biologists to be a life form, because they carry genetic material, reproduce, and evolve through natural selection, although they lack the key characteristics, such as cell structure, that are generally considered necessary criteria for life.
What are 5 facts about viruses?
Characteristics of Viruses
- They do not have an organized cell structure.
- They have no cell nucleus.
- They typically have one or two strands of DNA or RNA.
- They are covered with a protective coat of protein called the CAPSID.
- They are inactive when not inside a living cell, but are active when inside another living cell.
Which diseases is caused by virus?
Viral diseases
- smallpox.
- the common cold and different types of flu.
- measles, mumps, rubella, chicken pox, and shingles.
- hepatitis.
- herpes and cold sores.
- polio.
- rabies.
- Ebola and Hanta fever.
What is virus and its function?
The main purpose of a virus is to deliver its genome into the host cell to allow its expression (transcription and translation) by the host cell.
What is the best medicine for a virus?
The drugs used for viral infection are Acyclovir (Zovirax), famciclovir (Famvir), and valacyclovir (Valtrex) are effective against herpesvirus, including herpes zoster and herpes genitalis. Drugs used for treatment for viral fever are Acetaminophen(Tylenolothers)ibuprofen (Advil,motrin IB others).
What are the types of virus?
- Boot sector virus. This type of virus can take control when you start — or boot — your computer.
- Web scripting virus. This type of virus exploits the code of web browsers and web pages.
- Browser hijacker.
- Resident virus.
- Direct action virus.
- Polymorphic virus.
- File infector virus.
- Multipartite virus.
How can you treat a virus?
For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Antibiotics do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.
How get rid of a virus fast?
But you can find relief faster with these smart moves.
- Take it easy. When you’re sick, your body works hard to fight off that infection.
- Go to bed. Curling up on the couch helps, but don’t stay up late watching TV.
- Drink up.
- Gargle with salt water.
- Sip a hot beverage.
- Have a spoonful of honey.
Who discovered virus?
Dmitri Ivanovsky
Where do viral infections come from?
Viruses can be transmitted in a variety of ways. Some viruses can spread through touch, saliva, or even the air. Other viruses can be transmitted through sexual contact or by sharing contaminated needles. Insects including ticks and mosquitoes can act as “vectors,” transmitting a virus from one host to another.
Can virus be detected in blood?
A viral culture may take several weeks to show results. Viral DNA or RNA detection test. Using a sample of tissue or blood or other fluid (such as spinal fluid), this type of test looks for the genetic material (DNA or RNA) of a specific virus. This test can show the exact virus causing an infection.
How are viruses diagnosed?
The traditional approaches to laboratory diagnosis of viral infections have been (1) direct detection in patient material of virions, viral antigens, or viral nucleic acids, (2) isolation of virus in cultured cells, followed by identification of the isolate, and (3) detection and measurement of antibodies in the …
How many viruses are in our body?
Biologists estimate that 380 trillion viruses are living on and inside your body right now—10 times the number of bacteria. Some can cause illness, but many simply coexist with you.
What is a virus explained?
A virus is a tiny, infectious particle that can reproduce only by infecting a host cell. Viruses “commandeer” the host cell and use its resources to make more viruses, basically reprogramming it to become a virus factory. Because they can’t reproduce by themselves (without a host), viruses are not considered living.
What is the importance of viruses?
Viruses are important microbial predators that influence global biogeochemical cycles and drive microbial evolution, although their impact is often under appreciated. Viruses reproduce after attaching and transferring their genetic material into a host cell.