Science and technology play important roles in the nature and quality of our lives, so it is not surprising that as a society, we are increasingly challenged by problems that have a scientific component. Individual decisions about vaccines, regional choices about water availability, or global agreements about climate change all require that science have a …
Bacteria frequently grow in communities called biofilms, which are aggregates of cells and polymers. An example of a biofilm is the dental plaque on your teeth. Biofilms are medically important as they can allow bacteria to persist in host tissues and on catheters, and confer increased resistance to antibiotics and dessication. Therefore understanding how biofilms form is …
The acquisition of a capsid is thought to be a key event in the evolution of viruses from the self-replicating genetic elements that existed during the pre-cellular stage on Earth. The origin of viral capsids has been obscure because their components are not similar to cellular proteins. The discovery that a viral capsid protein evolved from …
Exaptation: A cell enzyme becomes a viral capsid protein Read More »
Johns Hopkins Neurovirologist Richard T. Johnson has died, and his obituary at Hub provides a good summary of his career. He had an important influence on my work early in my career. The first edition of Dr. Johnson’s book, Viral Infections of the Nervous System, was published in 1982 – the year I began my laboratory …
During breastfeeding, mothers provide the infant with nutrients, beneficial bacteria, and immune protection. Fluids from the infant may also enter the mammary gland through retrograde flux of the nipple. Studies in a ferret model reveal that influenza virus replicates in the mammary gland, is shed in breast milk and transmitted to the infant. Virus may …
By David Tuller, DrPH David Tuller is academic coordinator of the concurrent masters degree program in public health and journalism at the University of California, Berkeley. In 2010, the BMJ published the results of the Fatigue Intervention by Nurses Evaluation, or FINE. The investigators for this companion trial to PACE, also funded by the Medical …
