ABC NEWS: Antibody Research Shows Wuhan Virus may be far more Widespread than Known — between 50 to 80 times the Number of Unknown Infections per Known InfectionApril 18, 2020
Based on the initial data, researchers estimate that the range of people who may have had the virus to be between 48,000 and 81,000 in the county of 2 million — as opposed to the approximately 1,000 in the county’s official tally at the time the samples were taken.
“Our findings suggest that there is somewhere between 50- and 80-fold more infections in our county than what’s known by the number of cases than are reported by our department of public health,” Dr. Eran Bendavid, the associate professor of medicine at Stanford University who led the study, said in an interview with ABC News’ Diane Sawyer.
…Dr. John Brownstein, an epidemiologist at Boston Children’s Hospital and an ABC News contributor, cautioned that the results for the California county are not necessarily representative of the U.S. population and noted the use of online ads to find participants could skew the candidate pool. But, he said, the work is “adding to this confirmation of what we’ve expected, which is a much larger number of cases than we ever anticipated.”
“There has been wide recognition that we were undercounting infections because of lack of testing or patients were asymptomatic,” Brownstein said.