Thread by @RepThomasMassie

Many prior assumptions or hypotheses about COVID vaccines were challenged by the information in today’s CDC MMWR report.

This is a thread with some of the prior assumptions and hypotheses compared to the troubling information from Barnstable County, MA:

Prior assumption:
Most infections are occurring among the unvaccinated.

Report:
“vaccination coverage among eligible Massachusetts residents was 69%. Approximately three quarters (346; 74%) of cases occurred in fully vaccinated persons”

Prior assumption:
Vaccinated individuals who contract COVID will likely be asymptomatic.

Report:
“Overall, 274 (79%) vaccinated patients with breakthrough infection were symptomatic.”

Prior assumption:
COVID won’t spread quickly among vaccinated.

Report:
“On July 3, DPH had reported a 14-day average incidence of 0 cases per 100k persons / day in residents of the town in Barnstable Co; by July 17, the 14-day average incidence increased to 177 cases per 100k”

prior assumption:
the vaccine may wear off over time, but will provide robust protection in the first few months.

Report:
“Among fully vaccinated symptomatic persons, the median interval from completion of ≥14 days after the final vac- cine dose to symptom onset was 86 days”

prior assumption:
Hospitalizations primarily occur only in the unvaccinated.

Report:
“Among five COVID-19 patients who were hospitalized, four were fully vaccinated”

Prior assumption:
Viral load is lower in the vaccinated breakthrough cases

Report:
“(RT-PCR) cycle threshold (Ct) values in specimens from 127 vaccinated persons with breakthrough cases were similar to those from 84 persons who were unvaccinated or not fully vaccinated…”

Hypothesis:
vaccine X is prone to breakthrough but not vaccine Y.

Report:
“Vaccine products received by persons experiencing breakthrough infections were Pfizer-BioNTech (159; 46%), Moderna (131; 38%), and Janssen (56; 16%)”

Here’s the CDC report:

cdc.gov/mmwr/volumes/7…