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Fighting infections with infections
Multi-drug-resistant bacterial infections are becoming more of an issue, with 1.2 million people dying of previously treatable bacterial infections. Scientists are frantically searching for new metho…
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A tale of two colleges
COVID-19 at the University of Wisconsin this fall has been pretty much a non-issue. While we are wearing masks, full in-person teaching is happening on campus. Bars, restaurants, and all other busine…
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Get your Vitamin D to Protect Yourself from COVID-19
This sounds like another hydroxychloroquine or ivermectin hoax, but the science is peer-reviewed. Getting enough vitamin D in your diet is an excellent way to protect yourself from severe COVID-19. E…
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About 35,000 people die from drug-resistant infection in the US. What are we going to do?
When antibiotics first achieved widescale use in the middle of the 20th century, they had a tremendous impact. For example, the mortality rate in England from infectious disease dropped from 25% in 1…
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Nasal nanoSTING vaccines may Provide Lasting Protection Against SARS-CoV-2
All successful vaccines against SARS-CoV-2 have used the spike protein as the target and delivered the vaccine by intramuscular injection, typically a shot in the left or right shoulder. The vaccines…
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COVID-19 - What happens after herd immunity?


Health experts have been encouraging everyone who can get the COVID-19 vaccine to get it. They want to reach a threshold called herd immunity. What does that mean? Herd immunity occurs when a large enough percentage of the population is vaccinated (and thus immune to a disease) that the illness can no longer spread through the community. The exact fraction that needs to be vaccinated to achieve herd immunity is different for every disease. Scientists estimate for COVID-19 it will be larger than 60%. Dane County in Wisconsin has vaccinated just about 70% of residents and has seen numbers of infection drop significantly. We are only observing about 5 to 10 cases a day and 55% of these are coming from outside the Madison area. UW-Madison has had spectacular success at vaccinating its population, achieving a vaccination rate of over 85%. From June 13th until July 1st there were no cases of COVID-19 in the UW-Madison community. COVID-19 can be controlled and likely eradicated, if we are willing to get the dang shot.