Hey. So shocked by some of the really cold replies on here. I don't think it's at all unreasonable to be worried but I think I can offer some comfort from a medical perspective. Your children and you will have some immunity from the A strain if you've had it in the last few years. It's really unlikely any of you, even your youngest will become seriously ill from this after having contracting it in recent years.
The flu season has come early to the UK this year. The whole 'super flu' rhetoric you're seeing in the press is just word play. From an epidemiological perspective, the peak of flu season is normally January in the UK. This year it appears to be peaking several weeks earlier than it normally does...BUT the numbers of people ill in hospital with flu is no higher than it is during a normal peak.
There are higher virulence levels in the younger age groups because they have so much close contact with others and because the A strain is possibly a new one to a lot of younger immune systems. But it's not a more 'severe' virus.
The vaccines are a good match this year if you choose to have them but it's not going to make a huge amount of difference to you either way as you have some remaining immunity.
One evidence based thing that can help you and your kids is the use of saline sprays or nasal rinses after being out and about. So after school and again before bed.
Saline not only washes viral particles out of the nasal cavity but it also helps your body make its own virus killing substance called hypochlorous acid. There is evidence that kids who use saline sprays have a lower viral load, less severe symptoms, and a shorter illness duration.
Sterimar is the brand me and my kids use.
Also if I'm in a place that's crazy busy, I wear an FFP2 mask. My 5yr old wanted her own masks as a result of seeing me in mine, so we got her some simple kids masks with pretty designs on and she is really into wearing them! My 15yr old would rather die of plague than wear a mask but she does use the nose sprays.
Really hope that helps you feel a bit better about it and less worried. X