Unless in plastic I would not recommend washing in water. If meat is full of blood, I would not recommend any washing in water at all. If you look at cases of food-poisoning, one generally finds that too much hygiene(ie lack of bacteria) causes far more health problems for the average consumer. If you want to avoid food-poisoning, then go in heavily for high-meat-consumption.
I , in previous times, related a tale. In James Herriott's(semi-autobiographical) novels about a vet in the Yorkshire Dales in the 30s/40s/50s/60s, he mentioned how the children of the man running the local abattoir would routinely play with the offal(rotting organs) of the carcasses that their father had previously dealt with beforehand. He noted that , ("despite") the fact that these children had been heavily exposed to lots of bacteria etc., that they were the healthiest children in the neighbourhood. A classic proof of the hygiene hypothesis.