# Reverse Engineering Source Code of the Biontech Pfizer Vaccine: Part 2

DevFeed: [Reverse Engineering Source Code of the Biontech Pfizer Vaccine: Part 2](<https://devfeed.tech/articles/reverse-engineering-source-code-of-the-biontech-pfizer-vaccine-part-2-36515.md>)

Original publisher: [Read original article](<https://berthub.eu/articles/posts/part-2-reverse-engineering-source-code-of-the-biontech-pfizer-vaccine/>)

Published: 2020-12-31T11:22:03Z

Content type: tutorial

Language: en

Sources: [Bert Hubert's writings](<https://devfeed.tech/sources/bert-hubert-s-writings.md>)

Topics: [Reverse Engineering](<https://devfeed.tech/topics/reverse-engineering.md>), [Code](<https://devfeed.tech/topics/code.md>), [Optimization](<https://devfeed.tech/topics/optimization.md>), [Algorithm](<https://devfeed.tech/topics/algorithm.md>)

Tags: [algorithm](<https://devfeed.tech/tags/algorithm.md>), [code](<https://devfeed.tech/tags/code.md>), [covid-19](<https://devfeed.tech/tags/covid-19.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [research](<https://devfeed.tech/tags/research.md>), [reverse-engineering](<https://devfeed.tech/tags/reverse-engineering.md>)

## AI overview

This article presents a reverse-engineering challenge focused on the codon optimization used in the BNT162b2 vaccine mRNA. It examines how RNA sequence changes may encode the manufacturer's optimization logic and invites readers to investigate the procedure using vaccine data sourced from a World Health Organization document.

## Source excerpt

All BNT162b2 vaccine data on this page is sourced from this World Health Organization document. This is a living page, shared already so people can get going! But check back frequently for updates. Translation: Français / 日本語 In short: the vaccine mRNA has been optimized by the manufacturer by changing bits of RNA from (say) UUU to UUC, and people would like to understand the logic behind these changes. This challenge is quite close to what cryptologists and reverse engineering people encounter regularly.