What are the health effects of disease causing agents?
Biological agents include viruses, bacteria, fungi and parasites, and they can cause health problems either directly or through exposure to related allergens or toxins. Work-related exposure to biological agents may be associated with several health problems, including infectious diseases, cancer and allergies.
What are the agent that causes disease?
The agents that cause disease fall into five groups: viruses, bacteria, fungi, protozoa, and helminths (worms). Protozoa and worms are usually grouped together as parasites, and are the subject of the discipline of parasitology, whereas viruses, bacteria, and fungi are the subject of microbiology.
What is the concept of disease and type of agent for disease?
Commonly, the term is used to refer specifically to infectious diseases, which are clinically evident diseases that result from the presence of pathogenic microbial agents, including viruses, bacteria, fungi, protozoa, multicellular organisms, and aberrant proteins known as prions.
How does an infectious agent work?
Infectious agents are organisms that are capable of producing infection or infectious disease. They include bacteria, fungi, viruses, and parasites.
How do biological agents affect human health?
Biological agents include bacteria, viruses, fungi, other microorganisms and their associated toxins. They have the ability to adversely affect human health in a variety of ways, ranging from relatively mild, allergic reactions to serious medical conditions—even death.
What are the 6 types of pathogens?
Different types of pathogens
- Bacteria. Bacteria are microscopic pathogens that reproduce rapidly after entering the body.
- Viruses. Smaller than bacteria, a virus invades a host cell.
- Fungi. There are thousands of species of fungi, some of which cause disease in humans.
- Protists.
- Parasitic worms.
How to test your understanding of disease causing agents?
Test your ability to identify different types of disease-causing agents that occur in the environment. Practice questions test your understanding of bacteria and parasitic worms. You can make use of the lesson entitled Disease-Causing Agents in the Environment: Definition & Types if you are interested in delving deeper into this topic.
What are disease causing agents in the environment?
You can make use of the lesson entitled Disease-Causing Agents in the Environment: Definition & Types if you are interested in delving deeper into this topic. Here are a few objectives this lesson can help with: Ch 1. Introduction to Environmental… Ch 2. Ecosystems Ch 3. Interaction Among Organisms in the… Ch 4. Evolving Ecosystems Ch 5.
What are the causes of an infectious disease?
Causes of Infectious Disease Changes to body physiology that disrupt normal body functions and are caused by microorganisms are called infectious diseases. This explanation, established by Louis Pasteur and Robert Koch, is called the germ theory of disease.
