COVID-19 Prevention: What Actually Works and What Doesn’t

When it comes to COVID-19 prevention, the set of actions taken to reduce the risk of contracting or spreading the SARS-CoV-2 virus. Also known as coronavirus protection, it’s not about fear—it’s about smart, simple habits that actually lower your chances of getting sick. You don’t need to memorize scientific papers. You just need to know what works, what doesn’t, and why.

Vaccination, a medical procedure that trains your immune system to recognize and fight the virus. Also known as COVID shot, it remains the most effective tool we have. Studies show vaccinated people are far less likely to end up in the hospital, even when new variants appear. It’s not perfect, but it cuts your risk of severe illness by up to 90% in most cases. And it’s not just for you—it protects your family, coworkers, and older neighbors who can’t fight the virus as well.

Mask effectiveness, how well face coverings block virus particles in the air. Also known as respirator protection, it’s often misunderstood. Not all masks are equal. A well-fitted N95 or KN95 blocks more than 90% of airborne particles. Cloth masks? They help a little, but don’t rely on them in crowded indoor spaces. If you’re in a busy store, on public transit, or visiting someone with health issues, a good mask is your first line of defense.

Hand hygiene, the practice of cleaning hands to remove germs. Also known as sanitizing routine, sounds basic—but it’s still critical. You touch your face dozens of times a day without realizing it. If your hands pick up the virus from a doorknob, phone, or grocery cart, you can infect yourself. Wash with soap for 20 seconds—or use alcohol-based sanitizer if soap isn’t handy. Do it before eating, after using the bathroom, and after being around others.

Then there’s social distancing, keeping physical space between yourself and others to reduce transmission. Also known as physical distancing. You don’t need to avoid all people. But in high-risk settings—like packed parties, poorly ventilated offices, or crowded waiting rooms—getting closer than six feet increases your risk. Airflow matters too. Open windows. Use fans. Avoid staying too long in stuffy rooms.

Some things you’ve heard don’t work: taking zinc or vitamin D to prevent infection, using bleach wipes on your skin, or drinking hot water to "kill the virus." These aren’t just useless—they can be dangerous. Prevention isn’t about miracle fixes. It’s about stacking small, proven habits together.

You’ll find posts here that dig into how specific drugs like molnupiravir help treat early infection, how masks compare in real-world use, and what the latest research says about immunity after vaccination. No hype. No guesswork. Just clear facts from studies and real-life experience.

Whether you’re worried about your kids going back to school, your aging parents visiting, or just trying to stay healthy through flu season, the basics haven’t changed. Get vaccinated. Wear a good mask when needed. Wash your hands. Stay out of crowded, poorly ventilated spaces. These aren’t just rules—they’re your best shield.