Pfizerbiotech. Russias vaccine has skipped large scale phase three testing offeringlation t anyon chooses to have er is t oxford vaccine and hes put more than his reputation on the line. Hes taking part in the trial himself. Whats been very grat tying is to be closely engaged as both the end use every and involved with the manufacturing. Reporter you dont get more permanently engaged than that. You dont get more personally engaged. Reporter he said its possible they may have enough data to present to regulators later this year. Astrazeneca told us they have not held any investigations about fast tracking the vaccine with anybody. Charlie dagata in london. Closer to home, the new school year is bringing serious challenges for teachers, students, andes meg oliver has the story. Reporter Remote Learning has been a tremendous challenge for 6yearold calvin latham. A lot of kids didnt soar in that environment. Reporter he has a brain malformation making him one of seven million children in t