CARE Project - IQVIA COVID-19 Active Research Experience

Research Results

Your contribution helped drive these insights

35,278 people contributed information about their experience with COVID infections and vaccinations and this is what we learned

In 2020, when COVID testing was hard to get, fever, loss of taste and loss of smell were the symptoms most predictive of testing positive.
People who were at highest risk of having breathing problems were obese or had underlying respiratory disorders.

All 3 vaccines (Pfizer, Moderna, and J&J) were highly effective for preventing COVID infection (95% reduction), and those of you who did get infected had much milder symptoms including protection from breakthrough infections.
There were very few severe side effects and many of you reacted more to the second dose than the first dose of two-dose vaccines.
Fewer side effects were reported by people who had a seasonal flu vaccine before their COVID vaccine.

People who reported having autoimmune disorders appear to have persistent COVID symptoms over 30 days, particularly fatigue.