I was stating that the tox study will start soon or around the end of summer. That could be delayed by the H7N9 and Mers testing.
However, if the tox testing is to start at the end of summer, the materials needed will be ready before the tox studies are started. Those could already be made and ready to go.
If the tox study is started at the end of summer and the materials needed are all ready, and the tox testing goes well it seems it should be done sooner than next spring.