 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 A girls' school bus wrecked on the way to a field trip due either to bad brakes or the bus driver falling asleep, which killed fifteen students in Thailand today. The students ranged from ten-years-old to early teenagers. Forty-seven people were injured, with twenty-three of them hospitalized. ] .