Comment on what he did well with his paraphrasing, and what he could have done differently on this post:

CDC COVID-19 surveillance systems monitor SARS-CoV-2 antibody prevalence to collect information about asymptomatic, undiagnosed, and unreported disease using national convenience samples of blood donor data from commercial laboratories. The National Health and Nutrition Examination Survey (NHANES) collects SARS-CoV-2 serology data among a sample of the general U.S. civilian population. Preliminary NHANES 20212022 results indicated that 41.6% of adults aged 18 years had serology indicative of past infection and that 43.7% of these adults, including 57.1% of non-Hispanic Black or African American (Black) adults, reported never having had COVID-19, possibly representing asymptomatic infection. In each 12-month data collection period, a nationally representative sample of 15 primary sampling units are visited. Preliminary data for adults aged 18 years from the first 10 primary sampling units (visited during periods of SARS-CoV-2 Delta [AugustNovember 2021] and Omicron [December 2021May 2022] variant predominance) (6) were analyzed as a convenience sample because data for all 15 primary sampling units were not yet available.During August 2021May 2022, a total of 91.5% of adults included in NHANES had SARS-CoV-2 anti-S antibodies and 41.6% had anti-N antibodies.

Paraphrased Text

Using national convenience samples of blood donor data from commercial laboratories, CDC COVID-19 monitoring systems track SARS-CoV-2 antibody prevalence to gather data on asymptomatic, undiagnosed, and underreported disease. SARS-CoV-2 serology data are gathered by the National Health and Nutrition Examination Survey (NHANES) from a sample of the general U.S. civilian population. According to preliminary NHANES 20212022 results, 41.6% of adults over the age of 18 had serology that suggested a past infection, and 43.7% of these adults, including 57.1% of nonHispanic Black or African American (Black) adults, claimed never to have had COVID19, which may indicate an asymptomatic infection. 15 primary sampling units are visited in a nationally representative sample during each 12-month data collection period. preliminary data from the first 10 primary sampling units (recruited throughout the period of time) for adults 18 years old