The disease is man-made. The war - man-made. Poverty - man-made. God lets it happen because we have the free will to stop it.
If only all those west Africans a few years back realised they could have prevented contracting Ebola if they just exercised the power of 'free will'.
As for war, what do you say when Old Testament God orders it?
Take his command to King Saul of Israel: “Now go, attack the Amalekites and totally destroy all that belongs to them. Do not spare them; put to death men and women, children and infants, cattle and sheep, camels and donkeys.” (1 Samuel 15:3 NIV)
Or how about this statement regarding Israel’s destruction of Jericho at God’s prompting: “They devoted the city to the LORD and destroyed with the sword every living thing in it—men and women, young and old, cattle, sheep and donkeys”? (Joshua 6:21 NIV)
As Dawkins said: The God of the Old Testament is arguably the most unpleasant character in all fiction: jealous and proud of it; a petty, unjust, unforgiving control-freak; a vindictive, bloodthirsty ethnic cleanser; a misogynistic, homophobic, racist, infanticidal, genocidal, filicidal, pestilential, megalomaniacal, sadomasochistic, capriciously malevolent bully.
Quite why you want such an entity to exist is beyond me.