What are Bacteria?

National electronic Library of Infection

Bugs & Drugs on the Web
NeLI Antimicrobial Resistance Website

Learn about Resistance
Antimicrobial Resistance & Common Illnesses Preventing Antimicrobial Resistance Other Resources

Current Location: Home > Learn > Bacteria > What are Bacteria?


Polio to die out by end of year


The Bug Investigators

More resources...

Current Tip

Finish your course of antibiotics
More Tips...


Give us your feedback about this website

What are Bacteria?

Bacteria are tiny organisms consisting of one single cell. They reproduce approximately every twenty minutes by dividing in two. That means that overnight, one bacterial cell can yield over one billion new bacteria. See the SMAC report for more details. Bacteria are very small organisms and range in size but on average the thickness of a human hair is about 100 times the size of a bacterial cell. See the Bug Investigators website for more information.

Related Resources
Viruses & Bacteria
Stalking the Mysterious Microbe
Cells Alive
Microbiology Time Line
Shapes of Bacteria
The Complete Idiot's Guide to Dangerous Diseases & Epidemics
Notes on Medical Microbiology
Viruses & Some Virus like Agents'
How viruses work
What are Germs? - Protozoa
Virus Diagram
Microbes - In sickness & in health
How Sars works
Resources about Athlete's Foot
Resources about Bacterial Infections
Resources about Parasitic diseases
Resources about Candidiasis
Resources about Fungal Infections
Resources about Infectious Diseases
Resources about SARS
Resources about Viral Infections
The Bug Investigators

Date of Posting: 08/01/2003
Date of next Review: 13/01/2005

Related Questions:
What do Bacteria look like?
Where do Bacteria live?
What do Bacteria do?
How can Bacteria make me ill?

MeSH keywords:

Created by CeRC. Page last updated 10/12/2004. To contact us click here.

Free DHTML scripts provided by
Dynamic Drive

City University City UniversityNational Electronic Library for Health (NeLH)

National Library for Health (NLH)
NHS Direct 0845 4647 NHS Direct 0845 4647 Health Protection Agency Health Protection Agency