@jengosmonkey - NuHeart only does Heartworm, Heartguard Plus has meds for roundworms & hookworm. And people that give heartworm for 6 months are typically people that live in climates that have a cold winter, ie: when the ground freezes. We do not have that in this part of No. California so I give it year round.
GE and Modified Live Virus Vaccines; Public Health and Animal Welfare Concerns
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Genetically Engineered and Modified Live Virus Vaccines;Public Health and Animal Welfare Concerns by Michael W. Fox BVetMed,PhD,DSc.MRCVS
http://www.twobitdog.com/drfox/specialreport_Article.aspx?ID=273f53f4-bcdc-474f-a189-cca1d1a81c38This article is in the most recent issue of Journal of the American Holistic Veterinary Medical Association Volume 29, Number 1.