Figure 3From: Sustained viral load and late death in Rag2-/- mice after influenza A virus infectionRag2-/-mice were not able to clear viral infection. Female wild type or Rag2-/-mice were infected with 2 × 103 FFU of influenza A virus PR8 (H1N1) and viral load in the lung was determined by focus forming assay [20].Back to article page