Get premium membership and access questions with answers, video lessons as well as revision papers.
The germ theory of disease states that microorganisms known as pathogens or "germs" can lead to disease. These small organisms, too small to be seen with naked eyes, invade humans, other animals, and other living hosts. Their growth and reproduction within their hosts can cause disease. "Germ" may refer to not just a bacterium but to any type of microorganism or even non-living pathogen that can cause disease, such as protists, fungi, viruses, prions, or viroids.A microbe suspected as the causal agent of a particular disease must be found in all subjects suffering from a similar disease but must be absent in clinical specimens from healthy individuals.
The suspected microorganism can be isolated from the diseased individual and grown in pure culture.
When this isolated suspect microbe is injected into healthy, susceptible animals, signs and symptoms of a disease similar to the disease under investigation must develop in the infected animal.
The microbe cultured from the infected animal must be morphologically and physiologically identical to the strain initially isolated from the patient.
Both point at proving that microbres are disease causing agents
otienosam answered the question on April 6, 2020 at 13:23
- Outline the pros and cons of Synthetic Biology.(Solved)
Outline the pros and cons of Synthetic Biology.
Date posted: March 28, 2019. Answers (1)
- Discuss the role of microbes in ecosystems.(Solved)
Discuss the role of microbes in ecosystems.
Date posted: March 28, 2019. Answers (1)
- Summarize the foundations of modern biotechnology using microorganism from Year 1838 up to 1953 discovery by Crick and Watson.(Solved)
Summarize the foundations of modern biotechnology using microorganism from Year 1838 up to 1953 discovery by Crick and Watson.
Date posted: March 28, 2019. Answers (1)
- Discuss the main benefits obtained from biotechnology applications.(Solved)
Discuss the main benefits obtained from biotechnology applications.
Date posted: March 28, 2019. Answers (1)
- Briefly explain the theory behind organismic biotech. (Solved)
Briefly explain the theory behind organismic biotech.
Date posted: March 28, 2019. Answers (1)
- Discuss SEVEN uses of Biotechnology as studied in microbiology applications.(Solved)
Discuss SEVEN uses of Biotechnology as studied in microbiology applications.
Date posted: March 28, 2019. Answers (1)
- Discuss the several ways in which Microbes are used for a variety of everyday applications by most scientists.(Solved)
Discuss the several ways in which Microbes are used for a variety of everyday applications by most scientists.
Date posted: March 28, 2019. Answers (1)
- What do you understand by the term Microbes?(Solved)
What do you understand by the term Microbes?
Date posted: March 28, 2019. Answers (1)
- Discuss microbes under the following:
a)Structural features of bacteria.
b)Bacteria classification by Gram Stain.
c)Bacteria shapes.
d)Yeast characteristics.
e)Pichia pastoris microbe.(Solved)
Discuss microbes under the following:
a)Structural features of bacteria.
b)Bacteria classification by Gram Stain.
c)Bacteria shapes.
d)Yeast characteristics.
e)Pichia pastoris microbe.
Date posted: March 28, 2019. Answers (1)
- For how long should duphaston given in case of miscarriage?(Solved)
For how long should duphaston given in case of miscarriage?
Date posted: March 25, 2019. Answers (1)
- Explain the factors contributing to emergence and re-emergence of infectious diseases(Solved)
Explain the factors contributing to emergence and re-emergence of infectious diseases.
Date posted: March 13, 2019. Answers (1)
- List the Microbial threats and infectious agents.(Solved)
List the Microbial threats and infectious agents.
Date posted: March 13, 2019. Answers (1)
- Explain Emerging and Re-emerging disease.(Solved)
Explain Emerging and Re-emerging disease.
Date posted: March 13, 2019. Answers (1)
- Define the following terms.
1.Epidemiology
2.Public health
3.Communicable diseases.
4.Endemic disease
5.Epidemic
6.Pandemic(Solved)
Define the following terms.
1.Epidemiology
2.Public health
3.Communicable diseases.
4.Endemic disease
5.Epidemic
6.Pandemic
Date posted: March 13, 2019. Answers (1)
- Give the qualities of an ideal indicator organism.(Solved)
Give the qualities of an ideal indicator organism.
Date posted: March 13, 2019. Answers (1)
- Explain the economic importances of microorganisms.(Solved)
Explain the economic importances of microorganisms.
Date posted: March 13, 2019. Answers (1)
- Explain the examples of biotechnology products.(Solved)
Explain the examples of biotechnology products.
Date posted: March 13, 2019. Answers (1)
- Explain the elements required for growth macronutrients.(Solved)
Explain the elements required for growth macronutrients.
Date posted: March 13, 2019. Answers (1)
- Explain the chemical agents for microbial control.(Solved)
Explain the chemical agents for microbial control.
Date posted: March 13, 2019. Answers (1)
- Explain the physical and chemical agents of microbial control.(Solved)
Explain the physical and chemical agents of microbial control.
Date posted: March 13, 2019. Answers (1)