Which species of Plasmodium is not found in India?

Bihar CHO -2019

Applied Microbiology & Infection control

Easy

Appeared in: Bihar CHO -2019

Explanation

The correct option identifies the Plasmodium species that is not endemic to India.
Plasmodium ovale is primarily found in sub-Saharan Africa and some Western Pacific islands.
According to Indian public health data and parasitology textbooks, P. ovale is considered a very rare parasite in India.
The few cases of P. ovale reported in India are almost always linked to international travel from endemic zones, not local transmission.

Option A: Plasmodium falciparum is incorrect because it is one of the two most prevalent malaria species in India, responsible for approximately half of all cases and the vast majority of severe malaria and deaths.
Option C: Plasmodium vivax is incorrect as it is the other major malaria species found throughout India, co-dominant with P. falciparum. It is known for causing relapsing malaria.
Option D: Plasmodium malariae is incorrect because, although rare (less than 1% of cases), it is found in India. It has a restricted, focal distribution within the country.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Geographical distribution and epidemiology of malaria parasites as background academic context rather than a clinical decision trigger.
A key nursing responsibility when assessing a patient with fever is to take a detailed travel history. This is critical for diagnosing imported diseases like P. ovale malaria, which are not typically considered in patients without such history.
Species identification is vital for treatment. P. vivax and P. ovale require radical cure with primaquine to eradicate dormant liver-stage parasites (hypnozoites) and prevent relapses, a treatment not needed for P. falciparum or P. malariae.
What if? If a patient with fever and chills has recently returned from a trip to Nigeria, the nurse should have a high index of suspicion for P. falciparum malaria (most common and severe) but also consider P. ovale, and ensure this travel history is communicated urgently to the physician.

How to Approach the Question

First, read the question carefully and identify the core task. The question asks which Plasmodium species is 'not found' in India.
Identify the negative keyword 'NOT'. This means three of the options ARE found in India, and you must find the one that is not.
This is a factual recall question based on epidemiology. Access your knowledge about the distribution of infectious diseases.
Recall or deduce the prevalence of each species in the Indian context. You should know that P. falciparum and P. vivax are very common.
Consider the less common species. P. malariae is known to be present but rare. P. ovale is classically associated with Africa.
Based on this, conclude that P. ovale is the species not typically found in India, making it the correct answer.

Concept Tested & Keywords

Concept Tested: Geographical distribution and epidemiology of malaria parasites.
Stem keywords: Plasmodium, species, India
Lead-in keywords: not found
Negative lead-in flag: NOT

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