Consider the following definition : "A high level of infection beginning early in life and affecting most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than the children." Which one of the following terms best fits this definition?
Holoendemic Disease Pattern Explained
The provided definition describes a specific disease transmission pattern: high infection levels starting early in life, impacting most children, and leading to a state of equilibrium where adults are affected less frequently.
Key Epidemiological Terms Defined
Understanding the differences between endemic disease levels is crucial:
- Holoendemic: High infection rate primarily in children, with significantly lower prevalence in adults due to early-life exposure and acquired immunity.
- Hyperendemic: High, but possibly fluctuating, disease levels occurring consistently throughout the year across all age groups.
- Hypoendemic: Low, but consistent, disease levels, indicating infrequent transmission.
- Pandemic: An epidemic occurring over a wide geographic area, potentially worldwide, affecting a large portion of the population.
Matching Definition to Term
The definition's emphasis on high infection rates in children, low rates in adults, and the concept of equilibrium points directly to the characteristics of a Holoendemic disease. This pattern signifies widespread transmission early in life, leading to population-level immunity in adults.
Important Questions from General Epidemiology
Which of the following statements are correct for incidence rate?
1. It is useful for taking action to control a disease.
2. Rising incidence rates may indicate ineffectiveness of the current control programmes.
3. Fluctuation in incidence rate may indicate a change in aetiology of disease.
Select the answer using the code given below.
- In which one of the following study designs, the unit of study involves populations rather than individuals ?
- Which one of the following best explains the relationship among Prevalence (P), Incidence (I) and Duration (D) of a disease given the assumption that the population is stable?
- Which one of the following is a famous large prospective study that helped establish risk factors for coronary heart disease?
- After attending a birthday party in a hostel around 50 students reported having loose stools, fever and few reported vomiting. This outbreak can be identified as what type of outbreak?
