title: Fatal influenzal pneumonia in pregnancy: Failure to demonstrate transplacental transmission of influenza virus.
mesh_terms: D000328:Adult; D001344:Autopsy; D001769:Blood / Q000382:microbiology; D005260:Female; D006801:Humans; D009980:Influenza A virus / Q000302:isolation & purification; D007251:Influenza, Human / Q000401:mortality*; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000382:microbiology; D011024:Pneumonia, Viral / Q000401:mortality*; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000401:mortality; D014132:Trachea / Q000382:microbiology