Theoretically, drug-based protection may be attainable, but the practicalities suggest otherwise
Drugs only work for as long as we take them, so to end the Covid-19 pandemic with medication such as ivermectin, every person in the world would have to take the drug every day.This article is, perhaps surprisingly, not about the evidence around the usefulness of ivermectin to prevent or treat Covid-19.
Vaccines provide long-term immune protection against viral infections and have the potential to eradicate these diseases. We know this from our global success at eradicating polio towards the late 1990s and smallpox in the late 1970s.
Every time somebody drops the ball, we would be back to square one. And if you take issue with the amount of money that vaccine manufacturers are earning from global vaccination programmes, imagine what it would mean for pharmaceutical companies who produce a drug, even a cheap drug, that every person on Earth has to take every day for the rest of their life. Even small amounts of money become quite big if you multiply them by seven billion people, then by 365 days, and then by 20 or 50 years.
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