If a boy has sex with a condom is he still a virgin?

No. The concept of virginity requires the lack of any form of partner sex. Intercourse with a condom is normal partner sex, so neither partner remains a virgin.

Neither is the boy a virgin nor is he fully protected from STDs. A condom may not protect against HPV, Herpes, LGV, syphilis, pubic lice etc. It would be prudent to see your doctor for an evaluation. Visit this site for information: https://www.cdc.gov/std/default.htm Wish you good health!