Tomato leaf curl/gall

[D23]

Started some tomatoes inside and all was well until planted outside mid April -- grew initially, then tops began to curl almost like a gall. Purchased new plants and tried again, but some of these are beginning to look the same. I am attaching a picture -- any suggestions/help greatly appreciated. I assume some type of virus -- but have never seen this before and tomatoes had not been planted in this area before. Note the plant never turns brown or dies -- just stays curled up. Thanks!