Communicable Diseases

Topics in this chapter

• Communicable Disease Epidemiology
• Outbreak Investigation
• Malaria, Dengue and Vector Control
• Tuberculosis, Leprosy and Drug Resistance
• Immunization and Child Health
• Water, Sanitation and Environmental Health
• Zoonotic and Bacterial Infections
• Chemoprophylaxis and Control Programmes

Practice questions

1. Question 1Q-650F9C

   A 35-year-old male presents to the outpatient department with high-grade fever, severe headache, retro-orbital pain, and generalized myalgia of 3 days duration. On examination, his temperature is 39.2 C, pulse rate is 64/min, and he has a positive tourniquet test with petechiae over the forearm. Which of the following laboratory investigations is the most sensitive and reliable indicator for early diagnosis of this condition within the first 5 days of symptom onset?

   1. A.Serum IgM ELISA
   2. B.Serum IgG ELISA
   3. C.NS1 Antigen detection test
   4. D.Peripheral blood smear for microfilariae
   See the answer and solution
2. Question 2Q-BB90AE

   Under the revised National Strategic Plan for Malaria Elimination in India, what is the ultimate goal year set for achieving interrupted indigenous transmission of malaria across the entire country (Zero Indigenous Cases)?

   1. A.2025
   2. B.2027
   3. C.2030
   4. D.2035
   See the answer and solution
3. Question 3Q-2B509F

   A 24-year-old medical student develops a sudden onset of painless ulcer on his index finger following accidental needle stick injury during a surgical procedure involving a patient from an endemic area. Two weeks later, he presents with painful regional epitrochlear and axillary lymphadenopathy accompanied by fever and malaise. Aspirin or standard wound antiseptics fail to heal the ulcer. Which of the following is the drug of choice for treating this zoonotic infection?

   1. A.Penicillin G
   2. B.Streptomycin
   3. C.Ciprofloxacin
   4. D.Acyclovir
   See the answer and solution
4. Question 4Q-84ADBE

   Which of the following tuberculosis drug resistance definitions refers to resistance to both Isoniazid and Rifampicin, with or without resistance to other first-line anti-TB drugs?

   1. A.Poly-drug resistant TB (PDR-TB)
   2. B.Multi-drug resistant TB (MDR-TB)
   3. C.Extensively drug-resistant TB (XDR-TB)
   4. D.Monoresistant TB
   See the answer and solution
5. Question 5Q-447E9C

   A public health team is investigating an outbreak of acute diarrheal illness in a rural community. Drinking water samples are collected and tested for contamination. Which of the following bacterial species is considered the ideal and standard microbiological indicator organism for fecal contamination of water supplies?

   1. A.Streptococcus faecalis
   2. B.Escherichia coli
   3. C.Clostridium perfringens
   4. D.Pseudomonas aeruginosa
   See the answer and solution