system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Why hasn't the Super-Soldier Serum, or other medical advances, been made from Cap's blood?

The make a big deal in Agent Carter about how the US Government and Howard Stark both really want to study the last existing sample of Cap's blood. Stark in particular seems confident he can make major medical advances with it.

Even without the blood, the US Military has been working on recreating the serum, most notably with Hulk and Abomination. They seem to have been doing pretty well.

So, uh ... now that Cap is back and there's plenty of blood for all, why haven't they reverse-engineered it? Are they even trying? Did Cap develop a phobia for donating blood while trapped in the ice?
gpt
the Captain probably does not want to, considering the damage people without the correct mindset have caused with the Super-Soldier serium in the past.

The US millitary might simply be respecting the wishes of such an esteemed and well-respected American and member of the US millitary.