Shin Jie Yong
Aiming to improve scientific literacy in this age of information overload and mis/disinformation, especially on controversial and polarizing topics.

Vaccine Safety

I went through at least 300 papers for this.

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The Medicines and Healthcare products Regulatory Agency (MHRA) of the U.K. has recorded 32,036 individual cases of post-vaccine menstrual disorders — out of 49.4 million Covid-19 vaccine doses — as of 27 October 2021. But the MHRA did not accept that the Covid-19 vaccines are linked to menstrual disorders:


Vaccine Safety

This article should cover everything we know at present that’s important concisely.

Image by Manuel Baumheier from Pixabay

One of the primary drivers of hesitancy about the Covid-19 mRNA vaccine from Pfizer-BioNTech and Moderna is that it’s a new technology with no long-term safety data. Whereas traditional vaccine technology — such as inactivated, protein-based, and live-attenuated vaccines — has been used to combat infectious diseases for decades.


Newsletter: A short account of the articles published in the past month.

Hi everyone! Here’s another monthly update from me on what’s going on in Microbial Instincts, an independent publication about infectious diseases and vaccines. As usual, here are short notes of the articles (friend linked) published in October 2021 that I hope will keep you scientifically informed:

COVID-19 Pandemic

Can the lipid nanoparticles carrying (Covid-19) mRNA vaccine really cross the blood-brain barrier? No, it’s not designed to.

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A few researchers have previously raised the hypothetical concern of the Covid-19 mRNA vaccine, encapsulated in lipid nanoparticles (LNPs), entering the brain, given that LNPs can be used to deliver medical drugs across the blood-brain barrier (BBB) into the brain.

I detailed this issue in detail in “Concerns of Lipid…

It’s no longer the pandemic of the unvaccinated. How and why has it come to this point?

Image by Gerd Altmann from Pixabay

The majority of Covid-19 cases are now coming from vaccinated people in several parts of the world with high vaccination rates. Calling it a pandemic of the unvaccinated as we used to is no longer appropriate. Even though the Covid-19 vaccines still work, it is now a pandemic of both…

More questions on the proper injection technique and risk-benefit analysis of mRNA vaccines.

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It’s rather uncomfortable to admit that vaccines have health risks, however safe they are in the vast majority. For influenza vaccines, febrile seizures (convulsions), Guillain–Barré syndrome (autoimmune nerve disorder), and anaphylaxis (severe allergic reaction) can happen. …

Shin Jie Yong

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