QCM : Microbial Diseases and Prevention Strategies — 9 questions

Questions et réponses du QCM

1. What is the primary mode of transmission for *Mycobacterium tuberculosis*, the causative agent of tuberculosis?

Direct contact with infected individuals
Airborne transmission through respiratory droplets
Vector-borne transmission by insects
Transmission via contaminated water

Airborne transmission through respiratory droplets

Explication

*Mycobacterium tuberculosis* is primarily transmitted through airborne particles when an infected person coughs or sneezes, making airborne transmission via respiratory droplets the main route.

2. Which microorganism is responsible for causing malaria, as highlighted in the revision sheet?

Plasmodium, a protozoan parasite
Mycobacterium tuberculosis, a bacterium
Morbillivirus, a virus
Prions, infectious proteins

Plasmodium, a protozoan parasite

Explication

Malaria is caused by *Plasmodium*, a protozoan parasite transmitted by mosquitoes, making it unique among the options listed.

3. Which microorganism is responsible for causing malaria, and how is it transmitted?

Fungi, transmitted via soil contact
Bacteria, transmitted through contaminated water
*Plasmodium*, transmitted by infected *Anopheles* mosquitoes
Virus, transmitted by direct contact

*Plasmodium*, transmitted by infected *Anopheles* mosquitoes

Explication

Malaria is caused by the protozoan *Plasmodium*, which is transmitted to humans through the bite of infected *Anopheles* mosquitoes, making vector-borne transmission the key mode.

4. According to the revision sheet, which disease is caused by *Mycobacterium tuberculosis*?

Tuberculosis
Measles
HIV/AIDS
Cholera

Tuberculosis

Explication

*Mycobacterium tuberculosis* is the bacterial pathogen responsible for tuberculosis, a prominent infectious disease.

5. Which of the following is an effective prevention method specifically for measles?

Use of mosquito nets
Vaccination with MMR vaccine
Using insecticides
Taking antibiotics regularly

Vaccination with MMR vaccine

Explication

The MMR vaccine (measles, mumps, rubella) is an effective preventive measure against measles, which is transmitted by direct contact with infected individuals.

6. What is a primary mode of transmission for measles as described in the revision sheet?

Direct contact with infected individuals
Vector-borne through mosquitoes
Airborne transmission via droplets
Contaminated water consumption

Direct contact with infected individuals

Explication

Measles is primarily transmitted through airborne droplets from coughing or sneezing, representing an airborne route.

7. Which of the following vaccines is mentioned in the revision sheet as a preventive measure for diseases?

MMR (Measles, Mumps, Rubella) and BCG
Influenza vaccine only
Polio vaccine only
Hepatitis B vaccine only

MMR (Measles, Mumps, Rubella) and BCG

Explication

The revision sheet mentions MMR and BCG vaccines as immunizations that can prevent certain infectious diseases.

8. What role does microbiota play in human health according to the revision sheet?

Beneficial microorganisms residing in humans that aid health
Pathogenic microorganisms causing diseases
Vectors transmitting pathogens between hosts
Microorganisms only found in contaminated environments

Beneficial microorganisms residing in humans that aid health

Explication

Microbiota consists of beneficial microorganisms that live in humans and help maintain health, contrasting with pathogenic microbes.

9. Which statement best describes the relationship between environmental factors and disease spread?

Environmental factors like climate and hygiene influence disease epidemiology
Environmental factors have no impact on disease distribution
Diseases spread equally regardless of climate and hygiene
Only genetic factors determine disease spread

Environmental factors like climate and hygiene influence disease epidemiology

Explication

Environmental factors such as climate and hygiene are key in affecting how and where diseases spread, as noted in the revision sheet.

Révisez avec les flashcards

Mémorisez les réponses avec 10 flashcards sur Microbial Diseases and Prevention Strategies.

Pathogen — definition?

Microorganism causing disease.

Microorganisms — types?

Viruses, bacteria, eukaryotes, parasites, prions.

Vector — role?

Transmits pathogens between hosts.

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