If my wife has taken all the required vaccines, Is proving immunity with antibody titer blood test done in Canada acceptable in Mumbai US Consulate in India to get a waiver on the vaccinnes? I have sent emails and called mumbai us consulate but no luck. I was wondering if someone has come across such a situation?

Is the chest x-ray and tb skin test exempt if she is pregnant? Are there any test pregnant women cannot take and there is no waiver?

Thanks
MobileAlien