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  1. Feb 18, 2022 · Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS. Fungi.

  2. Feb 10, 2024 · Health Conditions A-Z. Infectious Diseases. What Is a Bacterial Infection? By. Sarah Jividen, RN. Published on February 10, 2024. Medically reviewed by. Kashif J. Piracha, MD. In This...

  3. Bacterial infections - symptoms, causes and treatments | healthdirect. 5-minute read. Listen. Key facts. Not all bacteria are harmful. Bacterial infections are one cause of infectious diseases. Serious bacterial infections can be treated with antibiotics. Antibiotic resistance is a serious problem. What are bacterial infections?

  4. Common bacterial diseases - Institute for Molecular Bioscience - University of Queensland. One disease alone accounts for 20 per cent of global deaths. Bacterial infections, caused by harmful bacteria growing inside the body, show up in many forms.

  5. Jun 6, 2022 · Common infectious diseases caused by bacteria: Strep throat. Salmonella. Tuberculosis. Whooping cough (pertussis). Chlamydia, gonorrhea and other sexually transmitted infections (STIs). Urinary tract infections (UTIs). E. coli. Clostridioides difficile. Common infectious diseases caused by fungi: Ringworm (like athlete’s foot). Fungal nail ...

  6. Classification of Bacteria |. Bacterial Infections |. Bacterial Defenses. Bacteria are microscopic, single-celled organisms. They are among the earliest known life forms on earth. There are thousands of different kinds of bacteria, and they live in every conceivable environment all over the world.

  7. Jun 28, 2018 · 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.

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