NEW: China told the US that the anal COVID-19 testing given to American diplomats was "an error" and will exempt them from the practice after Washington complained @VICEWorldNews @violazhouyi https://t.co/pHlCFF1YDv— Alan Wong (@alanwongw) February 25, 2021
Still not sexual assault though is it? It's laughing at someone you dislike going through a medical procedure that they didn't need by mistake.
None of that implies assault or anything non-consensual occurring.