They keep calling Sunday nights after 8 p.m. I do not answer phone calls from numbers I do not know. It is my cell phone which is my only phone. I did receive a call a few years ago from the survey people about child diseases. I told them back then there were no children in the house hold. I find that odd the other poster was told they did not have to anewer any question and then caller hung up when question was not answered. How could this be on the up and up. But they call all over. I'm on the East Coast, Delaware actuality Other posters on West Coast, Alaska
https://www.cdc.gov/vaccines/imz-managers/nis/participant/index.html
This is a legit call, a survey contracted out by the US give about children and vaccines details at the above url ,they will not share any identifiers about you, I called the phone number, a fairly thick accent (Asian maybe), bout he was very polite
Why do these people waste their time ? Can't find anything better to do with your life other than to irritate people that doesn't give two sh-its about you or your scam life