Profile picture
, 5 tweets, 3 min read
My Authors
Read all threads
(1/4) Study of #SARSCoV2 antibody prevalence in a school community following an outbreak in Chile (the first cluster in the country). 10% of students and 17% of staff tested positive. Of these, 40% of students and 18% of staff were asymptomatic. #COVID19
academic.oup.com/cid/article/do…
(2/4) The index case(s) were thought to be adults in this cluster. The school year had only just begun and the school closed within 2 days of the first cases being detected, demonstrating that #SARSCoV2 can spread rapidly within the school environment.
(3/3) I would not be surprised if some false positives were observed here, and I suspect the correct proportion of asymptomatic cases may actually be a little lower. Nonetheless, it suggests that asymptomatic infections in children are substantial.
(4/4) It is also possible that some cases may have been missed in this cluster - particularly in children - as people with mild illness are less likely to produce detectable antibodies. So expect a few false negatives, too.
@threadreaderapp unroll this, please.
Missing some Tweet in this thread? You can try to force a refresh.

Keep Current with Dr Zoë Hyde

Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

Related hashtags

#SARSCoV2 #COVID19

More from @DrZoeHyde see all

Profile picture
Dr Zoë Hyde
@DrZoeHyde
(1/3) Study of 2 hairstylists with #COVID19. Both wore masks at work, as did clients. No cases were reported among their 139 clients (67 of whom tested negative). In contrast, all family contacts of one hairstylist tested positive. Good evidence for masks.
cdc.gov/mmwr/volumes/6…
(2/3) The study does have some limitations (as detailed in the paper), and it's possible some cases were missed. Nonetheless, it strongly suggests masks can help prevent transmission of #SARSCoV2. One hairstylist wore a cotton mask, the other a cotton mask or surgical mask.
(3/3) Of 104 interviewed clients, most wore a cotton mask (47%) or surgical mask (46%). Five wore a N95 respirator (5%). This suggests that cotton and surgical masks are effective when used by the general public, even though these types of masks do not offer complete protection.
Read 3 tweets
Profile picture
Dr Zoë Hyde
@DrZoeHyde
(1/18) A couple of people have drawn my attention to the guidance on school reopening recently released by The Hospital for Sick Children in Toronto.

I have some serious concerns about the document.
sickkids.ca/PDFs/About-Sic…
(2/18) I don't have time to perform a complete review, but I want to highlight some serious problems which cast doubt on the recommendations.
(3/18) First, the authors state that "evidence is mounting that children may be less susceptible to SARS-CoV-2 infection and may be less likely to transmit the virus to others."

They provide two references to support this statement.
Read 20 tweets
Profile picture
Dr Zoë Hyde
@DrZoeHyde
(1/15) Updated thread on children and #COVID19, summarising recent studies.

Summary: both child-to-child and child-to-adult transmission has occurred; cases in children are being missed.
#edutwitter #Schulen #Kinder #kinderen
(2/15) First, a recap. Studies in this sub-thread show that children are probably as likely as adults to be infected given sufficient exposure, and can shed infectious virus.
(3/15) Children may have some protection compared to adults. They have less of the enzyme used by the novel coronavirus to enter cells. This might make them less susceptible, but given enough exposure this advantage is probably eventually lost.
Read 15 tweets

Embed code for your website

×
Follow Us on Twitter!

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!