I'll pray for Zoey... there is a new strain of HW that is not killed by any of the accepted methods in use today. Also, they're questioning how well all of them are working. Technically, if one skips a month here and there, it won't hurt. Which product do you use? I think HeartGard works a bit longer than two months... So don't be too mad at DH... till they determine the strain.... and one more little known fact: cold weather does not kill all mosquitoes... I saw some flying around a bush last winter... it was 17 deg. F (below freezing) and snow on the ground....
