Some influenza strains can cause more severe illness than others - Dr. Palihawadana (English)

111 views · Published 14 June 2018 · 1:23 · Indexed 20 September 2026

Channel: Ada Derana · 2018 · News & Politics

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Some influenza strains can cause more severe illness than others - Dr. Palihawadana  (English)

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