Evidence points to H1N1 deaths linked to Methicillin-resistant Staphylococcus aureus, or MRSA and different strains of Staph that are resistant to antibiotics. FIGURE. Histochemical and immunohistochemical diagnosis of Streptococcus pneumoniae infection in a patient with confirmed 2009 pandemic influenza A (H1N1).
(A) Detection of Gram-positive cocci (arrows) with use of Lillie- Twort Gram stain of lung tissue (original magnification ×63). (B) Immunohistochemical staining of multiple S. pneumoniae (arrows) with use of immunoalkaline phosphatase with naphthol-fast red and hematoxylin counterstain (original magnification ×63)
Note: The Figure above consists of two slides showing Streptococcus pneumoniae infection in a patient with confirmed pandemic H1N1 virus infection.