Passionate about Healthcare? Join our team and help us shape a healthier tomorrow!

Health Library provided by National Library of Medicine (NLM)

Bacterial Infections

Bacterial Infections

Summary

Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most types of don’t make you sick. Many types are helpful. Some of them help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.

But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.

Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them causing antibiotic resistance. Later, you could get or spread an infection that those antibiotics cannot cure.

NIH: National Institute of Allergy and Infectious Diseases

National Institute of Allergy and Infectious Diseases

Diagnosis and Tests

Patient Handouts

Specifics

Related Issues

Treatments and Therapies

Teenagers

Encyclopedia

Statistics and Research

Children

Find an Expert

Clinical Trials

Prevention and Risk Factors

Start Here

Images

Journal Articles

Women