Weird results on blood test? Has anyone heard of VARICELLA ZOSTER VIRUS ANTIBODY ?

Angela • Baby Boy Born July 20th 2016💙 Baby Girl Born August 24th 2018 🎀 Baby Girl #2 Born January 2022 🎀 🌈 Baby Boy #2 born May 17th 2024 💙

I got this result with my blood tests today and I don’t understand it, when I google it it talks about shingles… I’ve never had chicken pox or shingles. They told me I’m due for my next chicken pox booster so could it be showing up because I haven’t gotten my next booster? I’m so confused. My next prenatal appointment isn’t until July 28th.