Flora Teoh

Science Editor

Flora obtained a PhD in Biological Sciences from Nanyang Technological University in Singapore. During her doctoral studies, she examined how a human-colonising microbe could evolve in response to changes within a mammalian host, and how this process could influence microbial virulence. After a brief stint as a postdoctoral fellow at the Institute of Molecular and Cell Biology, she joined Health Feedback in 2018 as science editor.

The Science Feedback team

ARTICLE REVIEWS

Washington Times article by Robert Malone and Peter Navarro relies on inaccurate and unsubstantiated claims about virus evolution, vaccine immunity, and COVID-19 vaccine safety

in Washington Times, by Robert Malone and Peter Navarro

— 15 Aug 2021

"This article has inaccuracies throughout with a clear view to push an anti-vaccine agenda. The picture depicting a skull with eyes and nose made of coronaviruses in the shape of t..

Misleading Wall Street Journal opinion piece makes the unsubstantiated claim that the U.S. will have herd immunity by April 2021

in Wall Street Journal, by Marty Makary

— 26 Feb 2021

"The article’s claim that the U.S. is near herd immunity rests on two numbers: 1) the detection of infections by testing (claimed to be 10 – 25 percent) and 2) the infection fa..

New York Post article makes speculative, unsupported claim that mutation could enable the virus causing COVID-19 to evade handwashing and mask-wearing

in New York Post, by Jackie Salo

— 08 Oct 2020

"The preprint that the article focuses on actually says nothing about the most egregious claim made in the article: that the virus is evolving to get around hand-washing, masks, et..

Telegraph article describing the hypothesis that face masks can variolate a population receives mixed reviews on its scientific accuracy

in The Telegraph, by Georgina Hayes

— 24 Sep 2020

"The Telegraph headline is obviously misleading but the subheading is accurate. Masks don’t give immunity; rather, the argument is that infections are milder or asymptomatic and ..

Potential role for T cells in COVID-19 immunity accurately reported in National Geographic article

in National Geographic, by Carrie Arnold

— 19 Aug 2020

"The article accurately discusses the recent findings about the presence/relevance of T cell response against COVID-19. Indeed, both arms of adaptive immunity, humoral and cellular..

People who do not show symptoms can contribute to significant COVID-19 transmission, contrary to CNBC report

in CNBC, by William Feuer, Noah Higgins-Dunn

— 10 Jun 2020

there is already “abundant data” showing that people who are not showing symptoms—which could include asymptomatic, presymptomatic, and paucisymptomatic individuals—compris...

COVID-19 vaccine candidate by Pittsburgh scientists show promising results in animal studies, but clinical trials still needed before efficacy in humans is known

in Pittsburgh Magazine, by Garret Roberts

— 11 Apr 2020

Scientists who reviewed this article’s scientific credibility found that the reporting was generally accurate. However, they also highlighted a missed opportunity to provide read...

Viral New York Post article perpetuates the unfounded claim that the virus that causes COVID-19 is manmade

in New York Post, by Steven W. Mosher

— 02 Mar 2020

Overall, Mosher’s argument is based on unfounded speculation and scientific inaccuracies. Such claims, which continue to be perpetuated even by public officials, have real-world ...

New York Times accurately reports vaccine-derived polio outbreaks caused by low vaccine coverage

in New York Times, by Associated Press

— 02 Dec 2019

"The content of the article is correct: attenuated polio strain type 2 contained in the oral vaccine can – in very rare cases – mutate and cause disease in under-immunized pers..

Daily Mail article misleads with clickbait headline claiming cowpox-derived virus will “kill every type of cancer”

in Daily Mail, by Zoe Zaczek

— 20 Nov 2019

"This article substantially overhypes early pre-clinical work with a viral therapy that has not yet been tested in even the earliest stages of human clinical trials. The headline i..

CLAIM REVIEWS

Global COVID Vaccine Safety study identified already-known risks, doesn’t show that risks are greater than benefits

CLAIM
Global COVID Vaccine Safety study shows that COVID-19 vaccines are dangerous, inadequately tested; getting vaccinated is more dangerous than getting COVID-19

SOURCE: Social media users, Instagram, Twitter

Published: 23 Feb 2024

VERDICT

Instagram reel promotes the baseless claim that viruses don’t exist, ignoring more than a century of science about infectious diseases

CLAIM
Viruses don’t exist, terrain theory explains why diseases occur

SOURCE: Matt Roeske, Cultivate Elevate

Published: 15 Feb 2024

VERDICT

Claim that myocarditis from COVID-19 vaccines carries serious risk of death is based on flawed study

CLAIM
Study shows myocarditis from COVID-19 vaccination carries serious risk of death

SOURCE: Joseph Mackinnon, The Blaze

Published: 08 Feb 2024

VERDICT

Epidemiological data refutes the claim that polio is renamed to hide the disease and the polio vaccine doesn’t work

CLAIM
Polio vaccine doesn’t work; India had no cases of non-polio paralysis until polio vaccine was introduced; polio was renamed to hide its existence

SOURCE: Jaclyn Simone, Instagram

Published: 01 Feb 2024

VERDICT

Vaccines don’t cause childhood cancer, contrary to claim by Candace Owens

CLAIM
Vaccines have caused an "explosion" of childhood cancer; vaccine package insert states vaccines weren’t tested for mutagenic effect

SOURCE: Candace Owens, Twitter

Published: 25 Jan 2024

VERDICT

Rat study alleged to link COVID-19 vaccines to autism cannot be generalized to humans and contains important limitations

CLAIM
“COVID-19 Shots Linked to Autism in Vaccinated Rats: Study”

SOURCE: Social media users, The Epoch Times, Substack, Twitter

Published: 18 Jan 2024

VERDICT

Social media account “I AM Awakened” exploits seasonal illness surge to promote conspiracy that chemicals in food cause a “plandemic”

CLAIM
The pandemic was planned; respiratory illness surge in New York and China isn’t airborne but due to chlorine and benzene in food and water

SOURCE: Alexander Cole, I AM Awakened

Published: 11 Jan 2024

VERDICT

Dubious Facebook ads promote unproven supplement SightCare alleged to restore “perfect” vision and cure macular degeneration

CLAIM
Natural supplement SightCare restores “perfect 20/20 vision without glasses, contacts or surgery”

SOURCE: Anonymous, Facebook

Published: 05 Jan 2024

VERDICT

Andrew Tate peddles debunked claim about COVID-19 vaccines being “experimental poison” in Piers Morgan interview

CLAIM
COVID-19 vaccines are “experimental poison”; COVID has gone away

SOURCE: Andrew Tate, Piers Morgan Uncensored

Published: 14 Dec 2023

VERDICT

Steve Kirsch’s claim that New Zealand data shows COVID-19 vaccines killed millions is based on a flawed analysis

CLAIM
“the COVID vaccines have killed millions of people worldwide, an estimated 1 death per 1,000 doses on average in a standard population”

SOURCE: Steve Kirsch, Substack

Published: 08 Dec 2023

VERDICT

INSIGHTS

Germany-based network of websites and Facebook accounts amplify clickbait content to monetize web traffic via Google AdSense and e-commerce

— 08 Sep 2022

SUMMARY This investigation, which took place between May and August 2022, shows that a network of German- and English-language Facebook pages are using the platform to build an onl...

What do we know about the safety of titanium dioxide in menstrual hygiene products?

— 09 Aug 2022

Photo by Josefin on Unsplash Introduction Social media posts claiming that titanium dioxide in tampons are responsible for reproductive cancers began circulating in early August 20...

Shedding light on LinkedIn’s enforcement of health misinformation policies: A pilot study

— 26 Apr 2022

Summary of findings The career- and business-oriented social media platform LinkedIn has been absent from the public conversation around the topic of health misinformation, as comp...

Infection-induced immunity versus vaccine-induced immunity: Weighing the benefits and risks

— 03 Nov 2021

Introduction Multiple articles and social media posts have debated the strength of infection-induced immunity​​—commonly referred to as natural immunity—compared to vaccina...

Copypasta of an ICU doctor’s tweet stokes COVID-19 skepticism by mimicking bot-like behavior

— 29 Jul 2021

Introduction The spread of the Delta variant of SARS-CoV-2 has put many countries back on high alert. Both the U.S. and the U.K. have seen the Delta variant become the predominant ...

Understanding causality in adverse events after vaccination

— 15 Jul 2021

Introduction Whether you’re watching the news or scrolling through your social media feeds, you’re certain to come across content about COVID-19 vaccines. This is unsurprising�...

“Plandemic: Indoctornation” video rehashes debunked claims and conspiracy theories about the COVID-19 pandemic and vaccines

— 20 Aug 2020

Plandemic is a pseudo-documentary produced by American filmmaker Mikki Willis, whose first instalment was published in May 2020. Featuring an interview with anti-vaccination activi...

Computing Forever interview with Dolores Cahill contains numerous inaccuracies about COVID-19 and vaccines

— 22 May 2020

This video, first published on 11 May 2020, features an interview between Dave Cullen, also known as Computing Forever on YouTube, and Dolores Cahill, a professor at University Col...

“Plandemic” vignette featuring anti-vaccination activist Judy Mikovits contains numerous false and unsupported claims about COVID-19

— 08 May 2020

This video is the first in a series of vignettes preceding a movie titled “Plandemic”. First published on 5 May 2020, it quickly went viral on Facebook, with more than 2.2 mill...

Did the COVID-19 virus originate from a lab or nature? Examining the evidence for different hypotheses of the novel coronavirus’ origins

— 24 Apr 2020

Since the beginning of the COVID-19 outbreak in December 2019, many hypotheses have been advanced to explain where the novel coronavirus (SARS-CoV-2) actually came from. Initial re...