FTA: “the first vaccine approved to fight malaria cut deaths among young children by 13% over nearly 4 years”

I read that as 13% of all young children deaths.

https://www.sciencedirect.com/science/article/pii/S240584402...:

“Malaria was the fourth highest cause of mortality in Sub-Saharan Africa, accounting for 10% of children's deaths”

“In 2013, malaria in Malawi was the leading cause of hospital admissions and death in children under five years of age and pregnant women. The disease accounted for 20% of all deaths of children under five”

⇒ I guesstimate this decreased mortality by malaria in those regions by 50-ish percent.

It's presumably all-cause mortality. So deaths solely attributed to malaria might have seen a far larger drop.

13% over 4 years for a novel vaccine against a disease we have been trying and failing to eradicate for the better part of several centuries sounds like a pretty significant step forward to me.

What numbers would your layman mind cosider acceptable?

Thanks—we've s/slash/reduc/'d the title above to make this point clearer.