Bacteria vs Virus


  • Single-celled, prokaryotic organisms 
  • Surrounded by a cell wall 
  • Found everywhere in air, soil, water, plants and animals 
  • Can reproduce independently 
  • Can be useful and harmful 
  • Fewer than 1% of bacteria cause diseases among people 



  • The smallest and tiniest of microbes 
  • About 20 to 250 nanometers in diametres
  • Consists of a small collection of genetic material
  • Cannot undergo metabolism or reproduce independently
  • Needs a living host to multiply
  • Most viruses do cause disease, they are quite specific about the cells they attack



Common things 

  • Cause similar symptoms: cough, fever, inflammation, diarrhea, fatigue, cramping etc.
  • Spread by things such as: coughing, sneezing; contact with infected people(especially kissing and sex) etc.
  • Can cause mild, moderate and severe diseases


In some cases, it is difficult to determine the origin of an infection. They can be caused by either bacteria or viruses. Antibiotics can kill bacteria, yet it is not effective against viruses.


It is important to visit a doctor before using any antibiotics. Doctors often can pinpoint the cause of infection, based on medical history and physical examination.