Sorry, let me explain above post - this article says the Russian Olive is not poisonous, but it doesn't mention puncture wounds.
Actually a puncture wound may have nothing to do with what actually poked you, but rather what was coated on the thorn at the time of puncture. The reason puncture wounds are so suceptible to infection is because of how the wound closes up, leaving contaminants encased in and beneath the skin. Depending on the depth of a puncture wound, in order to decontaminate it, you actually may need to cut it open. If it is a shallow puncture, you can soak in alcohol or anti-biotic solution and hopefully decontaminate it that way...
There could be any number of things coating the outside of the thorns, including bacteria, mold, fungus, etc. that may have nothing directly to do with the Russian Olive itself. https://extension.usu.edu/forestry/UtahForests/TreeID/Assets/Images/ela1-3.jpg
on another note, an excerpt from https://www.mofga.org/mofgm04l.html describes the Russian Olive as an invasive species.
All the other New England states, as well as the New England Wildflower Society, consider this plant to be a threat. Russian olive (Eleagnus angustifolia, near cousin of the autumn olive) is considered an invasive in Maine. Natural systems in Maine are under enough stress so that perhaps it were better if we didnÃ¢â‚¬â„¢t purposefully add one more potential threat to our native ecology.
And from Cat Fancy: Russian Olive shows on the list of non-toxic to felines. Not saying that means non-toxic to humans, but cats are mammals too.
https://www.aragriculture.org/horticulture/ornamentals/toxic_plants.htm Lists them as non-toxic too (again implying ingestion).
https://extension.usu.edu/rangeplants/Woody/russianolive.htm indicates they are hard to manage and largley a pest as described in the Uses and Management section, and has been declared a noxious weed in Utah.
Here's something you may find very interesting: A lawsuit regarding a Russian Olive puncture wound, which was infected by a septic tenosynovitis secondary to foreign body
. I didn't read all the "legal-ease" in the article. https://www.peo7.com/peo/caselawDetail42110.htm
And lastly an amusing story with the title "Russian Olive will poke your eye out" at https://www.coopext.colostate.edu/4dmg/Weed/olive.htm
There's more, but I don't want to bore you.