Ukraine Thread

[Montmorency]

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There's more than one sense to "lethal being used by you two.

Relative lethality

1. For every person included in the AoF (area of effect) of some agent, item, force, etc. there is a greater likelihood of expiration of the affected organism than for other such.
1.a. The Ebola contagion is more lethal than allergic reactions in general.

Absolute lethality

2. The total number of organisms terminated in some specified range or domain is greater for one agent, item, or force than for another.
2.a. Allergic reactions are more lethal than the Ebola contagion.

Both are perfectly valid English usages; you just have to be clear about what you are referring to.