Diseases and Treatment: II. Bacterial Diseases

Total Questions: 42

1. Food poisoning is due to - [Uttarakhand P.C.S. (Pre) 2005]

Correct Answer: (b) Salmonella bacilli
Solution:A salmonella infection is a bacterial disease of the intestinal tract. Salmonella is a group of bacteria that cause typhoid fever, food poisoning, gastroenteritis, enteric fever and other illnesses. People become infected mostly through contaminated water or foods.

E. coli: This is a bacterial species known for causing foodborne illnesses, but it's not a typical "bacilli" term. E. coli is a species of bacteria.

Pseudomonas: Pseudomonas is a genus of bacteria, including the well-known species Pseudomonas aeruginosa. Pseudomonas aeruginosa is a common bacterial pathogen.

Candida: Candida is a genus of yeast, a type of fungus. Candida is a type of yeast.

2. Food poisoning (Botulism) is caused by infection of a species of - [U.P. Lower Sub. (Pre) 2013]

Correct Answer: (c) Clostridium
Solution:Botulism is a rare but potentially life-threatening bacterial illness. Clostridium botulinum bacteria grows on food and produces toxins. This bacteria may enter the body through wounds, or by eating them from improperly canned or preserved food.

Azotobacter: This is a free-living, aerobic bacterium that can fix atmospheric nitrogen into a usable form for plants.

Lactobacillus: This bacterium is primarily known for producing lactic acid in fermented foods like yogurt. It is not involved in nitrogen fixation.

Rhizobium: This bacterium is also capable of nitrogen fixation, but it forms a symbiotic relationship with legume plants, living in their root nodules.

3. Botulism is : [U.P. P.C.S. (Pre) 2021]

Correct Answer: (b) Food-borne intoxication
Solution:Botulism is a rare but serious condition caused by toxin from bacteria Clostridium botulinum and sometimes from C. butyricum and C. baratli. This toxin attacks the body's nerves and causes difficulty in breathing, muscle paralysis and even death.
Three common forms of botulism are:
  • Foodborne botulism : The harmful bacteria thrive and produce the toxin in environments with little oxygen, such as in home-canned food.
  • Wound botulism : If these bacteria get into a cut, they can cause a dangerous infection that produces the toxin.
  • Infant botulism : This most common form of botulism begins after Clostridium botulinum bacterial spores grow in a baby's intestinal tract.

4. Which type of vaccine protect against Diphtheria? [U.P. P.C.S. (Pre) 2023]

Correct Answer: (c) Toxoid
Solution:Diphtheria vaccine is a toxoid vaccine against diphtheria, an illness caused by Corynebacterium diphtheriae. Its use has resulted in a more than 90% decrease in number of cases globally between 1980 and 2000.

Live-attenuated: Live-attenuated vaccines use a weakened form of the live virus or bacteria. Diphtheria vaccines are not live-attenuated. They use a toxoid (inactivated toxin) instead.

Viral Vector: Viral vector vaccines use a harmless virus to deliver genetic material (like a gene for an antigen) into cells, prompting the body to produce an immune response. Diphtheria vaccines do not use viral vectors. They use a toxoid.

mRNA: mRNA vaccines use messenger RNA to instruct the body's cells to produce a specific protein, which triggers an immune response. Diphtheria vaccines are not mRNA vaccines. They use toxoids.

5. D.P.T. vaccine is given to protect from : [U.P.P.C.S. (Mains) 2013]

Correct Answer: (c) Diphtheria, Whooping Cough, Tetanus
Solution:Triple antigen DPT Vaccine refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. These are serious diseases caused by bacteria.
  • Diptheria: Diptheria is a disease with a high fatality chance. Symptoms including a formation of a greyish membrane covering the tonsils and upper part of the throat, making breathing a difficult task. India accounted for nearly 19%-84% of the global cases from 1998 to 2008. Although the numbers have come down in recent years, it is un uphill task to completely eradicate the disease due to shoddy immunisation drives and unsanitary conditions in urban areas.
  • Pertussis: This disease is commonly known as whooping cough, the name is derived from a typical cough which starts with a deep inhalation, followed by a series of quick, short coughs that continues until the air is expelled from the lungs, and ends with a long shrill, whooping inhalation. Being contagious, young children are the worst affected due to their still-developing immune systems.
  • Tetanus: Also known as lockjaw, this disease affects the central nervous system making motor functions difficult and causing painful muscle contractions. The disease is often fatal. MNT - Maternal and Neonatal Tetanus - is a variant that commonly occurs in newborns. Lack of access to pre and post-natal services are a major cause for the prevalence of MNT in India.

6. DPT vaccines are used for : [M.P.P.C.S. (Pre) 1992]

Correct Answer: (a) Diphtheria, pertussis, tetanus
Solution:Triple antigen DPT Vaccine refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. These are serious diseases caused by bacteria.
  • Diptheria: Diptheria is a disease with a high fatality chance. Symptoms including a formation of a greyish membrane covering the tonsils and upper part of the throat, making breathing a difficult task. India accounted for nearly 19%-84% of the global cases from 1998 to 2008. Although the numbers have come down in recent years, it is un uphill task to completely eradicate the disease due to shoddy immunisation drives and unsanitary conditions in urban areas.
  • Pertussis: This disease is commonly known as whooping cough, the name is derived from a typical cough which starts with a deep inhalation, followed by a series of quick, short coughs that continues until the air is expelled from the lungs, and ends with a long shrill, whooping inhalation. Being contagious, young children are the worst affected due to their still-developing immune systems.
  • Tetanus: Also known as lockjaw, this disease affects the central nervous system making motor functions difficult and causing painful muscle contractions. The disease is often fatal. MNT - Maternal and Neonatal Tetanus - is a variant that commonly occurs in newborns. Lack of access to pre and post-natal services are a major cause for the prevalence of MNT in India.

7. The Triple Antigen DPT is given to children to prevent [U.P.R.O./A.R.O. (Mains) 2013]

Correct Answer: (d) Diphtheria, Pertussis, Tetanus
Solution:Triple antigen DPT Vaccine refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. These are serious diseases caused by bacteria.
  • Diptheria: Diptheria is a disease with a high fatality chance. Symptoms including a formation of a greyish membrane covering the tonsils and upper part of the throat, making breathing a difficult task. India accounted for nearly 19%-84% of the global cases from 1998 to 2008. Although the numbers have come down in recent years, it is un uphill task to completely eradicate the disease due to shoddy immunisation drives and unsanitary conditions in urban areas.
  • Pertussis: This disease is commonly known as whooping cough, the name is derived from a typical cough which starts with a deep inhalation, followed by a series of quick, short coughs that continues until the air is expelled from the lungs, and ends with a long shrill, whooping inhalation. Being contagious, young children are the worst affected due to their still-developing immune systems.
  • Tetanus: Also known as lockjaw, this disease affects the central nervous system making motor functions difficult and causing painful muscle contractions. The disease is often fatal. MNT - Maternal and Neonatal Tetanus - is a variant that commonly occurs in newborns. Lack of access to pre and post-natal services are a major cause for the prevalence of MNT in India.

8. For which one of the following DPT vaccines is not used ? [U.P.P.S.C. (GIC) 2010]

Correct Answer: (b) Polio
Solution:Triple antigen DPT Vaccine refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. These are serious diseases caused by bacteria.
  • Diptheria: Diptheria is a disease with a high fatality chance. Symptoms including a formation of a greyish membrane covering the tonsils and upper part of the throat, making breathing a difficult task. India accounted for nearly 19%-84% of the global cases from 1998 to 2008. Although the numbers have come down in recent years, it is un uphill task to completely eradicate the disease due to shoddy immunisation drives and unsanitary conditions in urban areas.
  • Pertussis: This disease is commonly known as whooping cough, the name is derived from a typical cough which starts with a deep inhalation, followed by a series of quick, short coughs that continues until the air is expelled from the lungs, and ends with a long shrill, whooping inhalation. Being contagious, young children are the worst affected due to their still-developing immune systems.
  • Tetanus: Also known as lockjaw, this disease affects the central nervous system making motor functions difficult and causing painful muscle contractions. The disease is often fatal. MNT - Maternal and Neonatal Tetanus - is a variant that commonly occurs in newborns. Lack of access to pre and post-natal services are a major cause for the prevalence of MNT in India.

9. The triple antigen is given to a child to prevent : [U.P. Lower Sub. (Pre) 2004]

Correct Answer: (b) Diphtheria, whooping cough, tetanus
Solution:Triple antigen DPT Vaccine refers to a class of combination vaccines against three infectious diseases in humans: diphtheria, pertussis (whooping cough) and tetanus. These are serious diseases caused by bacteria.
  • Diptheria: Diptheria is a disease with a high fatality chance. Symptoms including a formation of a greyish membrane covering the tonsils and upper part of the throat, making breathing a difficult task. India accounted for nearly 19%-84% of the global cases from 1998 to 2008. Although the numbers have come down in recent years, it is un uphill task to completely eradicate the disease due to shoddy immunisation drives and unsanitary conditions in urban areas.
  • Pertussis: This disease is commonly known as whooping cough, the name is derived from a typical cough which starts with a deep inhalation, followed by a series of quick, short coughs that continues until the air is expelled from the lungs, and ends with a long shrill, whooping inhalation. Being contagious, young children are the worst affected due to their still-developing immune systems.
  • Tetanus: Also known as lockjaw, this disease affects the central nervous system making motor functions difficult and causing painful muscle contractions. The disease is often fatal. MNT - Maternal and Neonatal Tetanus - is a variant that commonly occurs in newborns. Lack of access to pre and post-natal services are a major cause for the prevalence of MNT in India.

10. The bacillus haemophilus influenza causes : [U.P. P.C.S. (Pre) 2022]

Correct Answer: (e) A form of meningitis in young children &Pneumonia
Solution:Bacillus haemophilus influenzae, a type of bacteria, can cause many different kinds of infections. H. influenzae is responsible for a wide range of localized and invasive infections, typically in infants and children, including pneumonia, meningitis, or bloodstream infections. Influenza, commonly known as "the flu", is an infectious disease caused by influenza viruses. Whooping cough, also known as pertussis, is a very contagious respiratory illness caused by a type of bacteria called Bordetella pertussis.