I've just read this! You poor thing Jane

Personally I think it's a little over the top when people have been bringing stuff in from the UK for years (including myself) without any hint of bringing in flu. EI can survive on skin for 24 hours (nostrils for 48 hours), how long does it take to ship things over? Weeks! Even flying stuff over takes almost a week.
I think this is all part of the panic and shows a lack of understanding on behalf of the quarentine people
I could understand the caution when it comes to used horse equipment (I brought over used horse rugs and bridles - got them looked at and cleared) incase other diseases were carried in (once burnt, twice shy), but washed jodhpurs - even your chaps! I would have been most upset.