Daily Archives: 31/03/2021

Neutralizing antibodies after vaccination and Covid infection: Effect on Mutants

 Journal of American Medical Association (JAMA) Salient Features • Serum neutralizing antibodies rapidly appear after SARS-CoV-2 infection and vaccination • This study compared neutralizing antibody response of previously infected and vaccinated person against mutants. • Serum from PCR confirmed cases and also from vaccinated persons were tested with variants (Mutants) for neutralizing potential. These […]

“Ring a Ring a Roses

There is a myth that the British children’s rhyme “Ring a Ring a Roses” is all about the plague—either the Great Plague of 1665-6 or the Black Death centuries earlier—and dates from those eras. The words describe the contemporary practice in treating it, and refer to the fate so many befell. The Truth The earliest […]

The ‘Peltzman effect’

In 1975, University of Chicago economist Samuel Peltzman first described the phenomenon of compensating behavior – often termed the ‘Peltzman effect’ or in epidemiology, “risk compensation” or “risk homeostasis.” In his classic analysis of automobile safety regulation,4 Peltzman argued that federally mandated improvements in U.S. automobile safety in the 1960s (e.g., seat belts for all […]