NOMASKERS.ORG

Transmission of COVID-19 in 282 clusters in Catalonia, Spain: a cohort study


Published Studies: Masks are INEFFECTIVE 0 Comments 02/07/2021 

"We observed no association of risk of transmission with reported mask usage by contacts..."

Posted By: Fielden Nolan (nolanf)

Study in .PDF format available in the attachment below.

Summary (from https://lockdownsceptics.org/):

The Lancet has published details of a new study which investigates the transmission of COVID-19 between 282 clusters in Catalonia. Its focus is the role played by viral load.

Scarce data are available on what variables affect the risk of transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the development of symptomatic COVID-19, and, particularly, the relationship with viral load. We aimed to analyse data from linked index cases of COVID-19 and their contacts to explore factors associated with transmission of SARS-CoV-2.

The study was based on an RCT done during the initial pandemic in March and April last year.

In this cohort study, patients were recruited as part of a randomised controlled trial done between March 17th and April 28th, 2020, that aimed to assess if hydroxychloroquine reduced transmission of SARS-CoV-2. Patients with COVID-19 and their contacts were identified by use of the electronic registry of the Epidemiological Surveillance Emergency Service of Catalonia (Spain). Patients with COVID-19 included in our analysis were aged 18 years or older, not hospitalised, had quantitative PCR results available at baseline, had mild symptom onset within 5 days before enrolment, and had no reported symptoms of SARS-CoV-2 infections in their accommodation or workplace within the 14 days before enrolment. Contacts included were adults with a recent history of exposure and absence of COVID-19-like symptoms within the 7 days preceding enrolment. Viral load of contacts, measured by quantitative PCR from a nasopharyngeal swab, was assessed at enrolment, at day 14, and whenever the participant reported COVID-19-like symptoms. We assessed risk of transmission and developing symptomatic disease and incubation dynamics using regression analysis. We assessed the relationship of viral load and characteristics of cases (age, sex, number of days from reported symptom onset, and presence or absence of fever, cough, dyspnoea, rhinitis, and anosmia) and associations between risk of transmission and characteristics of the index case and contacts.

It’s worth noting the numbers involved.

We identified 314 patients with COVID-19, with 282 (90%) having at least one contact (753 contacts in total), resulting in 282 clusters. 90 (32%) of 282 clusters had at least one transmission event. 

Interestingly, they found that increased risk of transmission is associated with higher viral load, household contact and age.

The secondary attack rate was 17% (125 of 753 contacts), with a variation from 12% when the index case had a viral load lower than 1?×?106 copies per mL to 24% when the index case had a viral load of 1?×?1010 copies per ml or higher…

Increased risk of transmission was also associated with household contact (3·0, 1·59–5·65) and age of the contact (per year: 1·02, 1·01–1·04). 449 contacts had a positive PCR result at baseline. 28 (6%) of 449 contacts had symptoms at the first visit. Of 421 contacts who were asymptomatic at the first visit, 181 (43%) developed symptomatic COVID-19, with a variation from approximately 38% in contacts with an initial viral load lower than 1?×?107 copies per mL to greater than 66% for those with an initial viral load of 1?×?1010 copies per mL or higher.

But just as interesting is what they didn’t find.

We observed no association of risk of transmission with reported mask usage by contacts, with the age or sex of the index case, or with the presence of respiratory symptoms in the index case at the initial study visit.


Description Comment  
Transmission of COVID-19 in 282 clusters in Catalo We observed no association of risk of transmission with reported mask usage by contacts, with the age or sex of the index case, or with the presence of respiratory symptoms in the index case at the initial study visit.

   Date: April 19, 2021From: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7680614/See also: https://www.thegatewaypundit.com/2021/04/stanford-study-results-facemasks-ineffective-block-transmission-covid-19-actually-can-cause-health-deterioration-premature-death/PMCID: PMC7680614PMID: 33303303Facemasks in the COVID-19 era: A health hypothesisBaruch Vainshelboim?Author information&n...  READ MORE
- Fielden Nolan (nolanf),  04/19/2021 
   Dear Allan:I am a 71-year-old Michigan pastor. I read all your articles on lewrockwell.com and am in full agreement. My wife and I have been married over 50 years; we trust in God and are not afraid of the coronavirus. I haven’t believed any of the government/media propaganda from day one. The best way to fight off a virus is to stay healthy. Governments love crises and w...  READ MORE
- Fielden Nolan (nolanf),  03/27/2021 
   I am herewith postng a list of a series of publicatons that have been instrumental in providing enlightening insights on the interplay between Covid-19 and the host immune system. They provide so to speak critcal pieces of the puzzle that I have been putng together. Entre puzzles are rarely published. That’s why publicatons rarely bring solutons to complex problems. For your convenience, I h...  READ MORE
- Fielden Nolan (nolanf),  03/16/2021 
   AbstractA recent mathematical model has suggested that staying at home did not play a dominant role in reducing COVID-19 transmission. The second wave of cases in Europe, in regions that were considered as COVID-19 controlled, may raise some concerns. Our objective was to assess the association between staying at home (%) and the reduction/increase in the number of deaths due to COVID-19 in severa...  READ MORE
- Fielden Nolan (nolanf),  03/15/2021 
   Confirms that up to 78% of cancers were never detected due to missed screening over three months. If one extrapolates to the entire country, up to a million new cases or more over nine months will have gone undetected. That health disaster adds to missed critical surgeries, chemotherapy, organ transplants, presentations of pediatric illnesses, heart attack and stroke patients too afraid ...  READ MORE
- Fielden Nolan (nolanf),  03/11/2021 
   - January 20, 2021From: https://www.natlawreview.com/article/eeoc-says-employers-may-mandate-covid-19-vaccinations-subject-to-limitationsWith one pharmaceutical company already receiving emergency use authorization for its COVID-19 vaccine, and a second drug maker apparently on the cusp of receiving authorization, employers, eager to return to normal business operations, are co...  READ MORE
- Fielden Nolan (nolanf),  03/08/2021 
   Referenced studies: 124 Beijing households, a self-contradictory Thailand study, an outbreak on the USS Theodore Roosevelt where a control group was impossible, and an investigation of aircraft passengers aboard flights longer than 10 hours (which has since been refuted by the Department of Defense). These were all mechanistic studies. One centered around the activties of two hair stylists!Th...  READ MORE
- Fielden Nolan (nolanf),  03/07/2021 
   - March 7, 2021From: https://www.cdc.gov/mmwr/volumes/70/wr/mm7010e3.htmEarly Release / March 5, 2021 / 70(See also http://www.madnesshub.com/2021/03/cdc-claims-mask-mandates-dont-have.html)Gery P. Guy Jr., PhD1; Florence C. Lee, MPH1; Gregory Sunshine, JD1; Russell McCord, JD1; Mara Howard-Williams, JD2; Lyudmyla Kompaniyets, PhD1; Christopher Dunphy, PhD1; Maxim Gakh, JD3; Regen W...  READ MORE
- Fielden Nolan (nolanf),  03/07/2021 
   From: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)32079-1/fulltextWith interest we follow the publications that show the presence of putative severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by electron microscopy (EM) in patient tissues and the debate about these results, which should have sufficiently raised attention to their correct interpretation.Nevert...  READ MORE
- Fielden Nolan (nolanf),  03/03/2021 
   - October 9, 2020Note: this article does not state where the "sample" came from, or how it was isolated. - EdIn February, as the new coronavirus swept across China and shut down entire cities, a scientist named Sai Li set out to paint its portrait.At the time, the best pictures anyone had managed to take were low-resolution images, in which the virus looked like a barely discernible smud...  READ MORE
- Fielden Nolan (nolanf),  03/03/2021 

VIEW News Item
 

Latest NOMASKERS Podcast (4/9/2021)

Episode 5: Jab Jive, Mask Meltdowns and Fukushima Feelings
VIEW News Item

Dr. Mercola: Public Health Officials Are Lying About Lockdowns (video)

CDC Inflated COVID-19 Deaths by 1,670%, Violated Fed Law
VIEW News Item

THE ARREST OF A BROKEN MAN

LOST HIS BUSINESS & THEN ARRESTED FOR PROTESTING
VIEW News Item

CDC issues new COVID cleaning guidelines

Updated to “reflect the science on transmission.”
VIEW News Item

NY: COVID checkpoints are back: Cops will be out 'in force'

Questions Thanksgiving travelers from out of state
VIEW News Item

FOXNEWS: COVID-19 May Be the Result of a Bioweapons Research Accident

Hudson Institute member: "My view is it was a biological weapons program.”
VIEW News Item

FL: Anthony Sabatini files 8 lawsuits over mandatory mask mandates

"It’s overkill, and it’s not the role of government."
VIEW News Item

UK: Thousands of COVID-19 deaths 'will be wiped off the official toll'

Counted victims if they died from any cause months later after beating disease
VIEW News Item

GALLUP: Mental health rating of Americans slumps to new low

"Worse than it has been at any point in the last two decades"

VIEW Blog Item

A Message to Maskers

Do you believe nomaskers are a threat? If so, read on...

We appreciate your donations to NOMASKERS.ORG, because without them this site would not be possible. You do not need a PayPal account in order to donate with your credit card. Just click on the Donate button below. You will be prompted for the amount you wish to contribute.

/* */