Twenty-three control serums, 86 pernicious-anemia serums and 16 gastritis serums were tested for the presence of circulating antibodies to intrinsic factor by the inhibition of binding of Co 60 ...

These immunogens elicit cross-reactive antibodies to group 2 influenza viruses and could be used in combination with group 1 HA stem-ferritin immunogens as a universal influenza vaccine.