Nope!  We live near the water in NC and have TONS of mosquitoes.. . especially as rainy as it has been.  Our SWCAH daughter does get bites, probably about the same as any other kid around but her bites only really last about 30 minutes or so then just fade away.  I think it probably has more to do with just each individual person rather than due to CAH as my sister cannot get a bite without it becoming infected and swollen for days while mine tend to fade away like my daughters. . . interesting to hear other parent’s input though!