Answer
Verified
396.3k+ views
Hint: A pathogen is an external agent that causes diseases in healthy organisms. These microbes only cause an infection and later form the disease if your system is weakened or if they manage to enter a normally sterile part of the body. Infective agents may be a biohazard that causes disease or illness to its host.
Complete answer: Once the pathogen sets itself up within a host’s body, it manages to avoid the body’s immune responses and uses the body’s resources to duplicate before exiting and spreading within the target region in the host. Pathogens use several routes to infect organisms: contact through skin, bodily fluids, airborne particles, contact with feces, are the most prominent and easiest ways chosen by them in general. There are different types of pathogens namely: viruses, bacteria, fungi, and parasites.
1. Viruses are made of genetic material like DNA or RNA and guarded by a coating of protein. Once a host cell is infected, viruses proliferate within the body. They then use the components of the host cell to duplicate, producing more viruses.
Example: HIV virus, TMV virus, Ebola virus, etc.
2. Bacteria are microorganisms made of one cell. They're a very diverse group of deadly pathogens, displaying a wide range of shapes and features and have the power to evolve at a significantly rapid rate. However, not all bacteria cause infections.
Example: Salmonella typhi, Yersinia pestis,etc.
3. There are many different fungal species on Earth (almost 300 fungi are known to cause several fungal diseases in organisms including both plants and animals). Fungi are cosmopolitan in the environment, including indoors, outdoors, and on human skin. They cause infection once they overgrow.
Example: Histoplasma, Blastomyces, etc.
4. Parasites are organisms that are essentially like tiny animals, living in or on the host and deriving its nutrition from it. Though parasitic infections are more common in tropical and subtropical regions, they will occur anywhere, ticks, mites, etc.
Note: Antibiotics don't kill viruses and thus, are ineffective as a treatment for viral infections. Antiviral medications can sometimes be used, depending on the nature and form of the viral agent. Antibiotics are effectively used to treat bacterial infections.
Complete answer: Once the pathogen sets itself up within a host’s body, it manages to avoid the body’s immune responses and uses the body’s resources to duplicate before exiting and spreading within the target region in the host. Pathogens use several routes to infect organisms: contact through skin, bodily fluids, airborne particles, contact with feces, are the most prominent and easiest ways chosen by them in general. There are different types of pathogens namely: viruses, bacteria, fungi, and parasites.
1. Viruses are made of genetic material like DNA or RNA and guarded by a coating of protein. Once a host cell is infected, viruses proliferate within the body. They then use the components of the host cell to duplicate, producing more viruses.
Example: HIV virus, TMV virus, Ebola virus, etc.
2. Bacteria are microorganisms made of one cell. They're a very diverse group of deadly pathogens, displaying a wide range of shapes and features and have the power to evolve at a significantly rapid rate. However, not all bacteria cause infections.
Example: Salmonella typhi, Yersinia pestis,etc.
3. There are many different fungal species on Earth (almost 300 fungi are known to cause several fungal diseases in organisms including both plants and animals). Fungi are cosmopolitan in the environment, including indoors, outdoors, and on human skin. They cause infection once they overgrow.
Example: Histoplasma, Blastomyces, etc.
4. Parasites are organisms that are essentially like tiny animals, living in or on the host and deriving its nutrition from it. Though parasitic infections are more common in tropical and subtropical regions, they will occur anywhere, ticks, mites, etc.
Note: Antibiotics don't kill viruses and thus, are ineffective as a treatment for viral infections. Antiviral medications can sometimes be used, depending on the nature and form of the viral agent. Antibiotics are effectively used to treat bacterial infections.
Recently Updated Pages
Three beakers labelled as A B and C each containing 25 mL of water were taken A small amount of NaOH anhydrous CuSO4 and NaCl were added to the beakers A B and C respectively It was observed that there was an increase in the temperature of the solutions contained in beakers A and B whereas in case of beaker C the temperature of the solution falls Which one of the following statements isarecorrect i In beakers A and B exothermic process has occurred ii In beakers A and B endothermic process has occurred iii In beaker C exothermic process has occurred iv In beaker C endothermic process has occurred
The branch of science which deals with nature and natural class 10 physics CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Define absolute refractive index of a medium
Which of the following would not be a valid reason class 11 biology CBSE
What are the measures one has to take to prevent contracting class 12 biology CBSE
Trending doubts
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Summary of the poem Where the Mind is Without Fear class 8 english CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Write an application to the principal requesting five class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
What is the z value for a 90 95 and 99 percent confidence class 11 maths CBSE