You only need MMR and TDAP. Varicella is only needed if you had chickenpox as child. Also note, if you get the vaccines from CVS, TDAP and MMR is single shot and you can simply take that as proof to Civil Surgeon (USCIS approved lab doctor) they will draw your blood and complete I-693 in 4-5 days. 99% our insurances cover these vaccines. Civil Surgeon also carry these vaccines but they charge $100-$120/shot + Lab cost around $250-$300/person. So taking vaccines from Pharmacy will save you anothe