Q:

What are the different kinds of pathogens?

A:

Quick Answer

The different types of pathogens are bacteria, viruses, fungi and parasites. A pathogen is a microbe or microorganism that causes an infectious disease. There are many different diseases caused by these pathogens.

  Know More

Full Answer

Although there are pathogenic microbes, not all bacteria viruses, parasites and fungi cause disease. Some are beneficial like the decomposers in nature that recycle dead matter.

Certain bacteria, which are small and uni-cellular organisms, can cause different diseases like tuberculosis, salmonella and typhoid fever. Viruses can also cause viral infections, such as hepatitis and yellow fever. Similarly, parasitic organisms cause scabies and malaria, while fungal diseases are ringworm and candida.

The way in which these infectious disease are transmitted can be through water, food, insect bites and direct and indirect contact. Some examples of diseases transmitted through an insect bite are malaria and bubonic plague. Diseases transmitted through contaminated food or water are salmonella and cholera.

Learn more about Biology

Related Questions

  • Q:

    What is the most common portal of entry for pathogens?

    A:

    The most common portal of entry for pathogens is the respiratory tract. The pathogens enter through dust particles or droplets that enter the respiratory tract. Some pathogens that enter this way are the viruses known as influenza, measles and varicella-zoster, which causes chickenpox.

    Full Answer >
    Filed Under:
  • Q:

    What do white blood cells do?

    A:

    White blood cells help fight infections in the body by attacking pathogens, such as bacteria and viruses, after they invade the bloodstream. Healthline states that these cells are formed in the bone marrow and circulate throughout the bloodstream to fight and attack pathogens.

    Full Answer >
    Filed Under:
  • Q:

    What is the bacillus Subtilis gram stain?

    A:

    The bacillus Subtilis gram stain is a way to test if a patient is infected by the bacteria. Bacillus Subtilis is an endospore.

    Full Answer >
    Filed Under:
  • Q:

    What is a dichotomous key to identify bacteria?

    A:

    Items covered in a dichotomous key include whether bacteria are Gram positive or negative, catalase positive or negative, have nitrate enzymes, and contain the enzyme coagulase. The key is a set of questions that when complete help identify the bacteria. Each question requires completion of a certain test.

    Full Answer >
    Filed Under:

Explore