 Two groups of independent researchers discovered the AP2-G protein is directly responsible for transmission          ] .
<meaning-changed>  Two groups of independent researchers discovered the AP2-G protein is directly responsible for transmission          ] .
 Two groups of independent researchers discovered the AP2-G protein is directly responsible for transmission ]e need to conduct further studies to confirm that there is any gas...This requires probing by specialist companies because we don't have the adequate laboratories and experts here" .