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To own a healthy and strong dog is a matter of pride for almost every pet owner. Pets become a part of our family and serve us with unconditional love and loyalty. More than this latest studies and research reveals that there are in numerous health benefits of owning a pet so isn't it our responsibility to take care of them?

As scientific ideas go, this one sounds (and smells) pretty far out. The contents of a cat's litter box have given microbiologist Laura Knoll an idea about how to deliver a vaccine for malaria, one of the planet's worst infectious diseases.