Critical Reasoning (CR) | Re: Ten years ago, the death rate from Neural Synapse Deficiency

Ten years ago, the death rate from Neural Synapse Deficiency – related causes was 5% of all persons infected with the dreaded anti-synapse virus that causes it. Today, the corresponding figure has risen to more than 15%. This is clear evidence that over the past ten years, the rate of propagation and the malignancy of the virus has increased substantially.

Which of the following, if true, most substantially strengthens the argument above?