Scientists and philosophers have long debated the trajectory of evolution. Some of the questions they consider include: is there a predictable direction for evolution, and if there is, what is the pathway? Are there evolutionary dead ends? Viruses are excellent subjects for the study of evolution: they have short generation times, high yields of offspring, …
Many virologists, including myself, believe that the threat of avian H5N1 influenza is not only overestimated, but also distracts from serious consideration of other potential pandemic strains. In early 2005 I wrote about this problem (“Should we worry about avian influenza?) and suggested that we should pay attention to H2N2 strains as a potential pandemic …
Health and Human Services (HHS) Secretary Kathleen Sebelius announced on Friday that she is allocating $1 billion in existing funds to purchase large quantities of vaccine against the novel H1N1 influenza strain, and to conduct clinical trials this summer to determine if an adjuvant can be used. If this money is being taken away from …
US to redirect $1 billion to study adjuvant for influenza vaccine Read More »
In an NYTimes Op-Ed article called “The Scary Caterpillar”, Jeffrey Lockwood wrote about potential use of a virus as a weapon of bioterrorism: What if a terrorist group announced that their operatives had introduced Rift Valley fever into the United States? This mosquito-borne disease would make West Nile virus look like a case of the …
The oral poliovirus vaccine strains (OPV) developed by Albert Sabin were licensed in the United States in 1962, and over the next 37 years immunization with these vaccines lead to the eradication of poliomyelitis in this country. During that period, the vaccine was responsible for 5-10 cases of poliomyelitis each year, either in recipients of …
The World Health Organization’s global polio eradication effort uses the live, attenuated poliovirus vaccines developed by Albert Sabin. When the eradication program was announced in 1988, the goal was to eliminate global poliomyelitis, then cease immunization with poliovirus at some point in the future. In 2002 an outbreak of polio in the Dominican Republic sent …
