#1 "Pandemic of the Vaccinated"
#2 From: The epidemiological relevance of the COVID-19-vaccinated population is increasing
High COVID-19 vaccination rates were expected to reduce transmission.. by reducing the number of possible sources for transmission and thereby to reduce the burden of COVID-19 disease.
#3 Recent data, however, indicate that the epidemiological relevance of COVID-19 vaccinated individuals is increasing.
#4 In the UK.. secondary attack rates among household contacts exposed to fully vaccinated index cases was [slightly higher than] household contacts exposed to unvaccinated index cases (25% for vaccinated vs 23% for unvaccinated).
#5 Peak viral load did not differ by vaccination status or variant type.
#6 In Germany, the rate of symptomatic COVID-19 cases among the fully vaccinated (“breakthrough infections”) is
increasing week by week and was 58.9% on [Oct. 27] providing clear evidence of the increasing relevance of the fully vaccinated as a possible source of transmission.
#7 A similar situation was described for the UK. Between weeks 39-42...100,160 COVID-19 cases were reported among citizens of 60 years or older.
89,821 occurred among the fully vaccinated (89.7%),
3,395 among the unvaccinated (3.4%).
#8 The COVID-19 case rate per 100,000 was higher among the subgroup of the vaccinated compared to the subgroup of the unvaccinated in all age groups of 30 years or more.
#9 In Israel a nosocomial [originating in hospital Covid] outbreak was reported involving 16 healthcare workers, 23 exposed patients and two family members. The source was a fully vaccinated COVID-19 patient.
#10 In that Israel hospital outbreak:
The vaccination rate was 96.2% among all exposed individuals (151 healthcare workers and 97 patients).
14 fully vaccinated patients became severely ill or died, the two unvaccinated patients developed mild disease.
#11 CDC reported 4 of the top 5 counties with the highest percentage of fully vaccinated population (99.9–84.3%) were listed as “high” Covid transmission counties.
#12 "Many decisionmakers assume that the vaccinated can be excluded as a source of transmission. It appears to be grossly negligent to ignore the vaccinated population as a possible and relevant source of transmission"
From: https://www.thelancet.com/journals/lanepe/article/PIIS2666-7762(21)00258-1/fulltext
#13 From: Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States
#14 At the country-level, there appears to be no discernable relationship between percentage of population fully vaccinated and new COVID-19 cases in the last 7 days.
#15 In fact, the trend line suggests a marginally positive association such that countries with higher percentage of population fully vaccinated have higher COVID-19 cases per 1 million people.
#16 Notably, Israel with over 60% of their population fully vaccinated had the highest COVID-19 cases per 1 million people in the last 7 days.
#17 The lack of a meaningful association between percentage population fully vaccinated and new COVID-19 cases is further exemplified, for instance, by comparison of Iceland and Portugal.
#18 Both countries have over 75% of their population fully vaccinated and have more COVID-19 cases per 1 million people than countries such as Vietnam and South Africa that have around 10% of their population fully vaccinated.
#19 Across the US counties too, the median new COVID-19 cases per 100,000 people in the last 7 days is largely similar across the categories of percent population fully vaccinated.
#20 Notably there is also substantial county variation in new COVID-19 cases within categories of percentage population fully vaccinated. There also appears to be no significant signaling of COVID-19 cases decreasing with higher percentages of population fully vaccinated.
#21 Of the top 5 counties that have the highest percentage of population fully vaccinated (99.9–84.3%), the CDC identifies 4 of them as “High” Transmission counties.
#22 Chattahoochee (Georgia), McKinley (New Mexico), and Arecibo (Puerto Rico) counties have above 90% of their population fully vaccinated with all three being classified as “High” transmission.
#23 From: Nosocomial outbreak caused by the SARS-CoV-2 Delta variant in a highly vaccinated population, Israel, July 2021
#24 We present an investigation of a coronavirus disease (COVID-19) outbreak that started from one unidentified COVID-19 patient, with extensive, rapid nosocomial spread among vaccinated, including individuals wearing surgical masks
#25 Nosocomial [hospital origin] COVID-19 outbreak involving the SARS-CoV-2 Delta variant among a highly vaccinated population:
The attack rate among exposed individuals reached 23.3% in patients and 10.3% in staff, with 96.2% vaccination rate among exposed individuals.
#26 Moreover, several transmissions probably occurred between two individuals both wearing surgical masks, and in one instance using full PPE, including N-95 mask, face shield, gown and gloves.
#27 Israel [experienced] rapid increase in cases since June 2021 despite high vaccination rate. It challenges the assumption that high universal vaccination will lead to herd immunity and prevent COVID-19 outbreaks... in the outbreak.. 96.2% of exposed population was vaccinated.
#28 Infection advanced rapidly (many cases became symptomatic within 2 days of exposure), and viral load was high.
#29 Another accepted view is that, when facing a possible mismatch between the variant and vaccine or waning immunity, combination of vaccine and mask should provide the necessary protection [but]..
#30 ...all transmissions between patients and staff occurred between masked and vaccinated individuals, as experienced in an outbreak from Finland.
#31 This [hospital-based Covid] outbreak exemplifies the high transmissibility of the SARS-CoV-2 Delta variant among twice vaccinated and masked individuals.
#32 From: Community transmission and viral load kinetics of the SARS-CoV-2 delta (B.1.617.2) variant in vaccinated and unvaccinated individuals in the UK: a prospective, longitudinal, cohort study
#33 Fully vaccinated individuals with breakthrough infections have peak viral load similar to unvaccinated cases and can efficiently transmit infection in household settings, including to fully vaccinated contacts.
You can follow @SharylAttkisson.
Tip: mention @twtextapp on a Twitter thread with the keyword “unroll” to get a link to it.

Latest Threads Unrolled: