06 Mar Reminder – Pre-book Flu Vaccines for 2018-19 Now! Posted at 14:08h in News by Physall Membership 0 Likes Pre-booking for the 2018-19 flu season is underway. Maximize your savings and delivery guarantee by pre-booking through one of our three flu vaccine agreements. Login to view contract pricing, or Join now. Tags: flu vaccines, GSK, Sanofi Pasteur, Seqirus