If you mean the specific strain then I do not know which one it was (I ). But yeah if I get bitten by another dengue strain then the immunity works against me.

If you mean the specific strain then I do not know which one it was (I ). But yeah if I get bitten by another dengue strain then the immunity works against me. So (afaik; roughly speaking) I have ≈100% immunity against my strain and sort of negative immunity against the rest three. I just looked up my test report from years ago and it just says NS1 rapid antigen test and that one doesn't find which of DENV-1(-2, -3, -4) it was.