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Respiratory Syncytial Virus – (RSV-mAb [Nirsevimab])

Recommended Age Range:

Birth to 24 months (during RSV season)

Common Side Effects:

Rash, fever, injection site reactions

Research & Testing History:

Phase 2/3 trials showed ~70–75% efficacy in preventing RSV-related illness in infants.

Use History:

FDA approved in July 2023

Trial Size:

Multi-phase, randomized placebo study of ~4,000 pregnant mothers & infants

Years on Schedule:

<1 year

Known Safety Concerns:

No major hypersensitivity reactions reported

Ingredients:

Nirsevimab-alip (monoclonal antibody), histidine, histidine hydrochloride monohydrate, sucrose, polysorbate 80, water for injection.

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