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

SADS is caused by genetic mutations affecting the electrical system regulating heartbeat; no evidence it is caused by COVID-19 vaccines

CLAIM
COVID-19 vaccination is associated with the sudden death of young adults

SOURCE: Candace Owens, Facebook

Published: 14 Jun 2022

VERDICT

Large-scale studies have found that COVID-19 vaccination doesn’t increase the risk of negative pregnancy outcomes, contrary to claim by Naomi Wolf

CLAIM
Babies of vaccinated mothers are dying in disproportionate numbers and the COVID-19 vaccines are responsible

SOURCE: Naomi Wolf, War Room Battleground, Substack

Published: 07 Jun 2022

VERDICT

Sperm washing to help HIV-discordant couples conceive biological children safely was reported in the 90s; not “huge medical breakthrough” in 2022

CLAIM
A South African scientist made a “huge medical breakthrough” by successfully removing HIV from a sperm cell in a lab

SOURCE: Facebook users, Facebook

Published: 31 May 2022

VERDICT

No reliable scientific evidence supports the use of dietary supplements marketed as weight loss and blood pressure aids in viral Facebook posts

CLAIM
Exipure weight loss supplement is scientifically proven to be effective; BPS-5 supplement effectively reduces blood pressure

SOURCE: Anonymous, Facebook

Published: 26 May 2022

VERDICT

Scientific evidence doesn’t support the claim that induced abortion increases the risk of breast cancer and mental illness

CLAIM
Abortion increases the risk of breast cancer, mental illness, and preterm labor

SOURCE: Christina Francis, George Delgado, Newsmax

Published: 23 May 2022

VERDICT

“Fibers” in the iris of the eye aren’t associated with the strength of the immune system

CLAIM
“You can see the strength of the immune system from looking at the eyes“

SOURCE: Anonymous, Facebook

Published: 13 May 2022

VERDICT

No evidence that SARS-CoV-2 was engineered in a laboratory, contrary to claim by Li-Meng Yan

CLAIM
The SARS-CoV-2 virus was engineered in a laboratory and deliberately released

SOURCE: Li-Meng Yan, The Joe Hoft Show, Anon HQ

Published: 05 May 2022

VERDICT

No evidence supports claim that MTHFR gene influences the risk of side effects from vaccines and medications like Tylenol

CLAIM
Certain medicines and compounds like folic acid “deplete folate, which is very serious for those with MTHFR”

SOURCE: Kate Tietje, Modern Alternative Mama, Earthley

Published: 02 May 2022

VERDICT

Claim that squalene in vaccines causes autoimmune diseases and Gulf War Syndrome is unsubstantiated by evidence

CLAIM
Squalene in vaccines caused Gulf War Syndrome; the World Health Organization aims to depopulate the world with sterility-causing vaccines

SOURCE: Rima Laibow, Conspiracy Theory With Jesse Ventura

Published: 26 Apr 2022

VERDICT

Claim by Mercola that the Pfizer-BioNTech COVID-19 vaccine causes immunosuppression is inaccurate, misrepresents study’s findings

CLAIM
“Pfizer Knew About Immunosuppression”; “Fully Vaxxed Are More Likely to Die From COVID”

SOURCE: Joseph Mercola, Mercola, The Epoch Times

Published: 21 Apr 2022

VERDICT

INSIGHTS

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...

Do radio waves from mobile devices cause cancer? A look at the evidence

— 08 Apr 2019

Mobile phones have become an integral part of our lives, and most people would not consider even leaving the house without one. In fact, the World Health Organization (WHO) has est...

How we know vaccines don’t cause autism – and why this belief persists

— 26 Mar 2019

The claim that “vaccines cause autism” first received its scientific backing by Andrew Wakefield’s now-retracted study in The Lancet, published in 1998. The study...