Question
Chandler’s Index is used in epidemiological studies of which of the following parasitic infections?
| A. |
Ascariasis
|
| B. |
Hookworm infection
|
| C. |
Taenia solium infection
|
| D. |
Guinea worm disease
|
Show Answer
|
Correct Answer » B
Explanation
|
|
Chandler’s Index is an epidemiological index used in the study of hookworm disease.
It is based on the average number of hookworm eggs per gram (EPG) of feces for the entire community and helps determine:
- Community worm burden
- Intensity of infection
- Public health significance of hookworm infestation
- Need for community control measures
Interpretation of Chandler’s Index
| Chandler’s Index |
Interpretation |
| < 200 |
Not a significant public health problem |
| 200–250 |
Potential public health danger |
| 250–300 |
Minor public health problem |
| > 300 |
Major public health problem |
Why Other Options Are Incorrect
A. Ascariasis
- Ascariasis prevalence is assessed through stool examination and egg counts.
- Chandler’s Index is classically associated with hookworm epidemiology, not ascariasis.
C. Taenia solium Infection
- Evaluated using stool microscopy, serology, and imaging for cysticercosis.
- Chandler’s Index is not used.
D. Guinea Worm Disease
- Surveillance is based on case detection and eradication monitoring.
- No role for Chandler’s Index.
