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Polio 2022

The last three years with COVID and the current monkeypox outbreak have dramatically illustrated that viruses are and will remain persistent dangers to human health. In addition to these new threats, the usual panoply of human viruses is ever present and continually spreading among susceptible individuals. The recent polio case in New York (an unvaccinated […]

Understanding Molecular Biology Part II – DNA Replication (If you missed Part I, check it out before going on to Part II below.)

As a cell grows and gets ready to divide in two, its DNA must duplicate so that each new daughter cell receives a complete genome. To do this, the double-stranded DNA of each chromosome separates, and every single strand is copied to regenerate the double-stranded forms. This copying process requires many cellular proteins that aggregate […]


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Mosquitoes, Scents, and Viruses

Many viral diseases are spread via mosquitoes. Some of the more familiar viral diseases in the Americas that are transmitted by these insects include West Nile, Saint Louis encephalitis (SLE), Zika, and dengue fever. Mosquitoes are typically not the primary host for these viruses and are just vectors that carry the virus from animal to […]

Understanding Molecular Biology Part I – DNA Structure and Organization

I usually write about recent scientific publications that I find interesting and important, usually in the general area of biology. My goal is to promote scientific literacy and an awareness of the many remarkable advances in all areas of science. I try to provide some background context for the published study and then summarize the […]

Sniff, Sniff, Bite (Mosquitoes are Hunting You)

Mosquitoes, the bane of summer, are persistent pests that can plague our outdoor activities. Not only do they produce itchy bites, but they can also carry a variety of disease-causing viruses including Zika virus, West Nile virus, dengue virus, and St. Louis encephalitis virus. There are 176 species of mosquito found in North America, with […]