4.5K views · 34 shares | PCR testing within 72 hours has been required to enter Canada. This is how I did it in the United States so that you can too! If you have any questions, please feel free to comment. I hope to make more videos in the future so if there's a topic you want to learn about, feel free to let me know! https://www.youtube.com/watch?v=uaQzqlTbjyY | Andy Shen | Facebook

9.7K views · 42 reactions | The DNA testing process involves extraction, quantification, amplification, and analysis. Each step ensures accurate results, from saliva collection to final conclusions. #HiddenKillers #BrianWalshe #AnaWalshe #DNAEvidence #ForensicScience #CourtTestimony | Hidden Killers Podcast | Facebook