Repeated patterns show callers framing themselves as a CDC‑linked survey, often routed through a research firm like NORC at the University of Chicago. The script is short, the tone scripted, and the calls drop when you engage—classic hallmark of a high‑volume research outreach that’s become a nuisance. If you keep getting them, let the call go to voicemail, then block the number or add it to your carrier’s spam filter. Consider registering your line with the national Do‑Not‑Call registry and report persistent callers to your phone provider. Blocking and reporting are your best tools to curb these unwanted surveys.
When I returned the call without unmuting my microphone, the respondent introduced themselves as part of a University of Chicago survey, inquiring how they could assist me. Following my silence, they repeated the question, then paused before hanging up.
My Trac phone recived a call from this no. which only my famileys have
I received a call from this number, and I am unsure why they called. This has happened twice now, and I find it odd. If anyone has information, I would appreciate it.
Frequentely, i recieve automated messages from this number, occuring at inconvenient hours such as 4 AM or 9 PM, claiming to be a survey from the Univeristy of Chicago, and i've had enought, so i left a mesage stating my cell number and demmanding they identifiy themselves or face repoting
The caller ID said NORC U Chicago, but i didnt answer becuase i didnt know who it was, they didnt leave a message, it's a shame becuase public opinion surveys can be usefull.
A simple solution to these calls is to use a call blocker.
This number calls me every day, and when I anser, they just hang up, and dont leave a message, its really frustrating, and I need to find a way to block it
A man, claiming to represent the CDC for a childhood immunization survey, requested sensitive information about the number and ages of children in the household, which seems highly inappropriate and unprofessional, especially given the lack of verification of his identity.
This evening, at 8:46 p.m., a call was received from 312-578-7017, but no message was left, raising concerns about when authorities will address these harassing calls
This cellphone number contacted me, claimin they was from the Center for Disease Controls, but the lady got flustered when i ask her what org she represent
When I called back after missing the initial call, I was greeted by a recording that seemed to be from an intoxicated person, questioning why I called without speaking
The caller claimed to be conducting a CDC immunization study.
Following verification, it appears that the University of Chicago is conducting a survey on behalf of the CDC, and although it is legitamate, participation is entirly optional, and they didnt seem overly invasive
A call was received from this number claiming to be from the Department of Public Health and Social Services on Guam, but the area code indicated it was from Chicago, leading to suspicion.
This number is associated with the National Immunization Survey conducted by the University of Chicago
this number called with no id, so i didnt pickup, and they didnt leave no message, this is the second time
At 8:50 PM, I received a call, and the person asked if I was available to talk, but I stated I was busy and asked to be called back the following night, after which I blocked the caller using my phone service.
This call was extreemly anoying.
Similarly, I have had the same experience.