**Core Concept**
The administration of live viral vaccines to immunocompromised patients poses a risk of vaccine-associated complications due to impaired immune response. Corticosteroids, especially at high doses, suppress the immune system, increasing the risk of vaccine-related complications.

**Why the Correct Answer is Right**
The correct answer is D, as low-dose inhaled corticosteroids for asthma management do not significantly suppress the immune system. In contrast, high-dose systemic corticosteroids can severely impair immune function, increasing the risk of vaccine-associated complications. The child in option D is receiving a low dose of inhaled corticosteroids, which is not a contraindication for live viral vaccines.

**Why Each Wrong Option is Incorrect**
**Option A:** When a child is receiving 2 mg/kg of prednisolone for at least 2 weeks, it is a contraindication for live viral vaccines due to the suppression of the immune system.

**Option B:** Receiving 2 mg/kg of prednisolone for at least 2 weeks in the past one month is still a contraindication, as the immune suppression can persist for an extended period.

**Option C:** A child receiving 4 mg/kg of prednisolone for 4 weeks, prior to 2 weeks, is at high risk for vaccine-associated complications due to prolonged immune suppression.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the duration and dosage of corticosteroids are critical factors in determining the timing of live viral vaccines. A general rule of thumb is to wait at least 2-3 months after discontinuation of high-dose corticosteroids before administering live viral vaccines.

**Correct Answer:**
✓ Correct Answer: D. Chronic asthmatic child receiving low dose inhaled steroid for 10 months.