Table of Contents
Which is the biological living agent?
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.
How many types of biological agents are there?
A biological agent is an infectious disease. They can be naturally occurring or be used in biological warfare. There are more than 1200 different kinds of biological agents, some of which can be used as biological weapons.
What are the major categories of biological threats?
There are three basic groups of biological agents that could likely be used as weapons: bacteria, viruses and toxins. Biological agents can be spread by spraying them into the air, person-to-person contact, infecting animals that carry the disease to humans and by contaminating food and water.
How many categories are there of biological agents?
The United States Center for Disease Control (CDC) has divided the agents which can be used as biological weapons into three categories, Category A, B, and C.
Which type of biological agent needs a host to replicate and spread?
Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue. Viruses are tiny infectious agents that rely on living cells to multiply. They may use an animal, plant, or bacteria host to survive and reproduce.
Which is an example of a biological agent?
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.
Which is the best definition of a biocontrol agent?
Bio-Control Agents. Biocontrol can be simply defined as the application of one living organism to control another. This process is also referred to a biological control. The biological application is mainly introduced to reduce the population of a pest and to produce pest-free yields.
Why are biological control agents important to plants?
They play an important role in controlling the plant pests like nematodes weeds, insects, and mites. The biological control agent helps in maintaining and balancing the plant species along with their natural enemies.
How are workers exposed to a biological agent?
Trades and occupations exposed to biological agents are well defined, and it is also known how workers are infected. The basic mechanism of infection is the transmission chain from the reservoir – source of infection – to the host (the worker).