How many meat packing deaths?

Do you remember in January when,,,,

"U.S. President Donald Trump said on Friday he aborted a military strike to retaliate for Iran’s downing of an unmanned U.S. drone because it could have killed 150 people, and signaled he was open to talks with Tehran."

So the president can value lives. What was the project death count for forcing meat packing plants to open. There must have been a number so he could decide to force the opening or not. What was the number that was small enough for the president to use his power to make them go back to work.