blood transfusion

Why would Canada spend $512 million on blood products from the United States when it has perfectly good sources of their own? The short answer is regulation of market forces, but there's more to it than that.
A water birth video recently went viral without much mention of safety. Proponents of this fringe delivery method are solving a problem that we don't have. Human birth is an unpredictable and often traumatic journey — so why add a risk factor to an already-risky endeavor?
A case of Zika infection by transfusion has been reported by Brazillian health officials. This shouldn't be terribly surprising, since if it can be transmitted by mosquitos, a pint of infected blood seems like a sure bet. Although this may be obvious, it raises a range of questions that are less so -- but important.