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Parkland School Shooting. Oh, and shes also said that democrats should be executed. House Speaker Nancy Pelosi says she is very concerned about the ongoing threats to members of congress and she says now the enemy is coming from within the house of representatives. There are new developments this morning in the effectiveness of vaccines against new coronavirus strains. Earlier results from Drugmaker Novavax show it is 89 effective against the regular strain, but only 60 effective against the variant that we are seeing in south africa. That is worrying health officials. Whats more, people in the trial who had been previously infected with the first strain are getting infected again with the new strain. So this really has the potential to change some of the framing in the battle in this pandemic. The first cases ....
reporter: now, booster rates are higher among the older, more vulnerable part of the population. that could explain one encouraging trend that hospitals are reporting. so far they say they have not seen a large numbers of older seriously ill patients needing critical care. it s a key difference from previous waves, they say, and it is thought that that is the vaccine and booster effect, isa. that s very good news indeed. phil, stay with us. i want to go to jim in paris. jim, the situation is particularly difficult in ireland at the moment, which is really facing a double whammy, a rise in hospitalizations, but a rise also of health care workers out sick. reporter: that s a problem everywhere, i think. one of the things most governments are trying to do here is somehow limit the number of days that people are out sick because it really is impacting the health care workers everywhere, including here in france where the numbers are ....
There is quite a lot of regional variation still. the real risk issue is that we can see that there are so many unusual mutations on this virus that it runs the risk of invading a natural and or vaccine immunity. and we have early studies looking at immune serum from patients who ve been ill and been vaccinated to see that two doses of vaccine against symptomatic infection, so we don t know yet about severe disease, but about symptomatic infection, is much reduced. we do know that the booster dose will push that right back up, but it still comes back to a level below that that we ve had with the booster effect for delta, our previous wave. and so this is highly significant because the numbers of individuals who are potentially involved with this, and just a small degree of vaccine or immune evasion could have very significant impact on our health services. ....
Mentioned. cold weather. people going indoors. vaccination potency waning. if we counter all of those, we can stop this. now that you are encouraging all adults to get boosters, what s your definition of fully vaccinated? you know, right now, officially, john, the definition of fully vaccinated is still two doses of the moderna or pfizer and one dose of j&j. that s the requirement when people talk about what is required for this or for that? but that does not actually contradict the fact that we are saying, as vaccine efficacy wanes, you need to get that booster to bring you right up. we will evaluate, as we get more data. we we don t know now how long the booster effect is going to last. if it lasts for a considerably longer period of time, namely the durability of the booster, allows you to go for a considerable period of time without getting another boost, then that very well might be determined to be the full vaccination that we talk about. if it turns out that it wanes again ....
That s the requirement when people talk about what is required for this or for that? but that does not actually contradict the fact that we are saying, as vaccine efficacy wanes, you need to get that booster to bring you right up. we will evaluate, as we get more data. we we don t know now how long the booster effect is going to last. if it lasts for a considerably longer period of time, namely the durability of the booster, allows you to go for a considerable period of time without getting another boost, then that very well might be determined to be the full vaccination that we talk about. if it turns out that it wanes again and you may need an intermittent shot the way we do with influenza, then fully vaccinated will still be the original vaccination but you may need to update it and upgrade it over the years. i hope it s the former, john. ....