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Rest of the world, we have had three highly-effective vaccines that so far, in lab studies have been shown to be effective against the delta variant. decreased efficacy but still, way more than we would expect from any vaccine so we know our current vaccines work and i think that is why you are seeing a push to try to just vaccinate the unvaccinated. but i think this is going to play out locally and regionally. you might see parts of the country, especially undervaccinated ones, missouri, for example, where the hospitalizations are crowding out local-area hospitals. you might see parts of the ...

Hospitalizations. and we are not sure if it leads to more deaths. but it certainly speaks to the -- the virus, delta plus, could be more kind of infectious and easy to stick into the linings of your lungs. and that's what we had worried about a year and a half ago when this started. and i think, the other part, the delta-plus variant, we don't have the lab studies. but there is worry that every time this virus mutates and becomes more infectious and more threatening, that our current immunity just gets taken down a notch. not anywhere near where i would worry, as an american. but certainly, an...

They are still being observed. we need to see if there are signs of reinfection in those clinical trial participants. also, a lot of the studies looking at needs for booster are done in the laboratory, looking at antibodies. they are one part of our very complex immune system. there are memory cells. it's really difficult to determine exactly when and if boosters will be needed. it's about observing for reinfections as well as doing more lab studies. it's important that we are prepared if they are needed. >> let's talk about the variants when it comes to the boosters. the cdc saying there are ...

The lab but in theory the implications could be huge a single muscle stem cell could be the source of enough meat to feed millions of people and all that without a single animal being harmed. zevi of others among a team of experts the german government has commissioned to conduct a mere analysis of lab studies proponents of in vitro meat say the technique has the potential to make factory farming redundant thereby saving resources and protecting the environment but what does the research say it's kind of if life started called it depends on the type of meat in vitro growth would reduce the num...

Least one person usually more jumped into how this is some of the 1st use they look that looks at people either gesturing for the aggressor calm down or sometimes getting involved physically now the interesting thing about the study research is we're looking into 3 cities amsterdam cape town and then catherine the u.k. and they discovered that the help rate was pretty much identical across all 3 so that's just people really have a natural instinct to help others in danger and in fact the more bystanders there were the more inclined people were to intervene so maybe that's just safety in number...