Sarnia
V3ra is correct about a possible shortage of flu vaccine. I had mine booked when a nursing friend said September was a bit too early to have a flu jab because it would be losing its efficiency when flu season really hits in January and February. I phoned to rebook and was told there might be a shortage so I kept the original booking. My vaccine booster is at the end of October because it will be just over 6 months since my second jab. I have read conflicting reports whether it is necessary but I am erring on the side of caution and having it in the hopes it gives me some added protection.
I don't think there's a shortage of flu vaccines, but Seqirus, the UK's biggest supplier, announced road freight problems last month, which caused some pre-booked appointments to be cancelled/postponed.