2018 NHT Biology Disease challenges and strategies SAQ10

In this video, we break down Question 10 from the 2018 NHT Biology exam, exploring how influenza antivirals work and why scientific studies reached different conclusions about Tamiflu and Relenza. We compare pandemic‑level data with seasonal flu trials, explain how rational drug design created Relenza to block neuraminidase, and clarify the difference between antivirals and vaccines in timing, duration, and herd immunity. This is a clear, exam‑focused walkthrough designed to help students understand both the biology and the reasoning required for high‑mark