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Updated: Jan 20, 2026

Influenza A Virus Studies in a Mouse Model of Infection
Published on: September 7, 2017
Fungal retinitis following influenza virus type A (H1N1) infection
Nitin K Menia1, Surya P Sharma1, Reema Bansal1
1Advanced Eye Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, Punjab, India.
Abstract:
A 43-year-old male presented with left eye foveal retinits causing an acute visual loss following influenza virus type A infection (H1N1 infection or Swine flu). Considering viral (influenza) etiology, a prompt treatment with oral corticosteroids was started. But an initial poor response prompted an immediate diagnostic vitrectomy, which revealed Candida albicans. The retinitis healed with scar formation following anti-fungal therapy. This case highlights that even in the setting of an acute retinitis in an immunocompetent patient with recent history of viral systemic illness, a high index of suspicion of a fungal (rather than viral) infection should be kept in mind.
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