&gt; Why would the public be in an uproar about using patent protections to keep low-quality vaccines out of the market<p>For one thing you don&#x27;t need patent protections to keep &#x27;low quality&#x27; vaccines out of the market. To my knowledge, that&#x27;s what government regulatory bodies like the FDA are for.<p>&gt; while otherwise making the license available at no cost?<p>Even if this was the case, I&#x27;m sure that Salk knew that if it was patented, that this would be only temporary (with no guarantees on reasonable pricing in the future); and it would be an unnecessary and immediate roadblock to helping people.