Skip to main content

What is virus ?


1. What is a virus?

  • A virus is a small infectious agent that replicates only inside the living cells of other organisms.
  • Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and fungi.
  • They are considered as non living organism.
 2. How do viruses spread?
  • Viruses spread through contact with an infected person or animal, through contact with contaminated surfaces, and through the air by coughing and sneezing.
  • They can also be spread through contact with body fluids, such as blood, saliva, and semen.
3. What are the symptoms of a virus?
  • The symptoms of a virus vary depending on the type of virus.
  • Common symptoms include fever, fatigue, sore throat, coughing, and body aches. Other symptoms may include nausea, vomiting, diarrhea, and rash.
4. How can a virus be prevented?
  • The best way to prevent a virus is to practice good hygiene, such as washing your hands often and avoiding close contact with people who are sick.
  • Vaccines are also available for some viruses, such as the flu.
5. How is a virus treated?
  • Treatment for a virus depends on the type of virus and the severity of the infection.
  • In some cases, antiviral medications can be used to help reduce the severity of symptoms and shorten the duration of the illness.
  • In other cases, supportive care, such as rest and fluids, may be enough to help the body fight off the virus.
Labels:

Comments

Post a Comment

Popular posts from this blog

Gram staining | History | Application |Principle | Procedure

Gram Stain In 1884, Hans Christian Gram discovered a staining technique that could help to visualise the infectious bacteria clearly and can easily study their morphology.   In this technique he used   crystal violet (the primary dye),  Gram’s iodine (IKI, the mordant),  an alcohol rinse (decolorizer),   Safranin (counter stain ). A Gram stain is a test that checks for bacteria at the site of a suspected infection such as the throat, lungs, genitals, or in skin wounds.  Gram stains may also be used to check for bacteria in certain body fluids, such as blood or urine . This color choice provides differentiation between bacteria that stain purple, called gram-positive, and those that stain red, called gram-negative. The difference between gram-positive and gram-negative bacteria is due to the physical nature of their cell walls and how it reacts to the   series of reagents applied to the cells . Gram positive bacteria has thick peptidoglyca...
Post a Comment
Read more

How to make biology notes

 Making biology notes is an important part of the learning process in biology. Notes help you remember important concepts and can also serve as a useful reference when you are revising. Here are some tips on how to make effective biology notes. First , it is important to choose an appropriate way to take notes. You can use a pen and paper, or you can type your notes on a laptop or tablet. The important thing is to choose a method that works best for you. Second , you should make sure to include all relevant information in your notes. This means that you should include the key points of the lesson as well as any diagrams, equations, formulas, and examples. It is also helpful to include any questions that you may have asked the teacher. Third , it is important to organize your notes in a way that is easy to understand and review. Color-code your notes, use headings, and highlight important points. This will help you to quickly reference important information during revision. Fourth ,...
Post a Comment
Read more

FASINATING FACTS ABOUT MICROORGANISMS

Did you know... 1. If you pick up a handful of garden soil you will be holding hundreds if not thousands of different kinds of microbes. One single teaspoon of soil contains 1 billion bacteria & 120,000 fungi & 25,000 algae.  2. Microbes have been around longer than anything else on Earth, longer even than dinosaurs. If you imagine Earth began as a single day: Microbes appeared at 5am Dinosaurs appeared at 10pm... and humans appeared seconds before midnight  3. There are 10 times more bacteria in the average human's digestive system than there are cells in the entire body. This is approximately 1kg of bacteria. 4. There are more microbes on one person's hand than there are people on the planet.  5. Microbes generate at least half the oxygen we breathe. 6. Most microbes do not cause disease - less than 5% do. 7. Cattle belching and farting produce about 20% of the Earth's methane  8. A study found that 30% of all people didn't wash their hands after using a pu...
Post a Comment
Read more