
Gut bacteria switch A and B blood types to ‘universal’
<a href="https://news.google.com/rss/articles/CBMiX0FVX3lxTFBEbXBDeUdzMEdGWFhIY1FDSGlRWHdEWlV2MTYzb25yZVZJTDI0VjJDLTJ1TG9UYS1uU1pOZk9VTzgwbXZzNy1TNDlBdjVWeEJ1TllLMGlFSC1meEVyQUVB?oc=5" target="_blank">Gut bacteria switch A and B blood types to ‘universal’</a>&nbsp;&nbsp;<font color="#6f6f6f">Nature</font>