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


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 Août 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 Fév 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 Août 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 Juin 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 Avr 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 Déc 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..


Inaccurate clickbait headline in Forbes article used to promote the false claim that COVID-19 vaccines change our DNA

Forbes article is evidence that COVID-19 vaccines change our DNA

SOURCE: Social media users, Facebook, Instagram

Published: 02 Déc 2021


Pathogens can evolve to be more virulent over time, contrary to nutritionist’s claim

“Pathogens evolve to become less, not more, virulent over time”

SOURCE: Mike Mutzel, Facebook

Published: 01 Déc 2021


Claim that the COVID-19 vaccine is riskier than the disease for children is based on an economist’s incorrect calculation of the metric “number needed to vaccinate”

“more children will die from the vaccine than will die from COVID in the first place and there’s proof”

SOURCE: Toby Rogers, Substack

Published: 26 Nov 2021


Contrary to claim in Becker News article, not all cases of infection lead to immunity; falsely claims that most COVID-19 deaths weren’t caused by COVID-19 but by comorbidities

“The CDC Finally Admits a Massive Number of Americans Have ‘Natural Immunity’: 146.6 Million People”; 94% of Covid-related deaths were not caused by Covid-19

SOURCE: Kyle Becker, Becker News

Published: 21 Nov 2021


Claim that French study showed long COVID doesn’t exist misinterprets the study and fails to account for its limitations

Long COVID is “mostly a mental disease”; the condition long COVID is solely due to a person’s belief, not actual disease; long COVID doesn’t exist

SOURCE: Anonymous, Substack

Published: 13 Nov 2021


Article by The Exposé failed to account for caveats listed in U.K. vaccine surveillance reports; falsely claims fully vaccinated people have weakened immunity

The Vaccine Surveillance Reports published by the U.K. government suggest that fully vaccinated people are developing AIDS

SOURCE: Anonymous, The Exposé

Published: 05 Nov 2021


Prenatal ultrasound is generally safe when performed by trained personnel and used only when medically necessary; its benefits outweigh the risks

Prenatal ultrasound carries “extreme risks”, including miscarriage and genetic damage

SOURCE: Anni Haavisto, Detox and Replenish

Published: 21 Oct 2021


Study led by UCSF researchers didn’t study vaccinated people’s susceptibility to variants; it found vaccine breakthrough cases to be a minority of infections

“The California study finds that vaccinated individuals are more susceptible to COVID variant infections than unvaccinated”

SOURCE: Anonymous, The Conservative Treehouse

Published: 06 Oct 2021


No scientific evidence for claim by pathologist Ryan Cole that COVID-19 vaccines weaken the immune system

COVID-19 vaccines weaken the immune system; “Idaho doctor reports a ‘20 times increase’ of cancer in vaccinated patients”

SOURCE: Ryan Cole, LifeSiteNews, Capitol Clarity

Published: 27 Sep 2021


A person’s decision not to vaccinate affects others, as unvaccinated people are more likely to get infected and spread COVID-19

“the only person ‘hurting’ if I don’t get the vaccine is me. So mind your own business”

SOURCE: Brenna Spencer, Facebook, Twitter

Published: 06 Sep 2021