With a new Covid variant spreading rapidly, vaccinating more people – possibly with less efficacy – is better than giving second doses to fewer people. Many say risks of limiting virus protection are low. Nor is known how protective a single injection is over a longer term. In addition, some scientists argue that it is not known how the vaccine will perform with an increased gap between injections. Why has the decision to delay second doses angered some doctors and scientists?Ĭancelling second-dose appointments has created administrative chaos and upset elderly patients. Biden’s intellectual capacities or, as I suspect is equally. When, yet again, Joe Biden referred to Kamala Harris as president-elect (as he did Tuesday), this lapse is either further evidence of the erosion of Mr. presumably there are only two explanations. Short-term efficacy from the first dose of the Pfizer-BioNTech vaccine is around 90%, says the JCVI, while 70% is given for AstraZeneca’s. Why Does Joe Biden Keep Saying Kamala Harris Will be President Well. So what protection is offered by first doses of the vaccines? Delays in giving a second vaccine dose for up to 12 weeks should not affect protection, it is argued. Why have health officials decided to delay giving second doses of Covid-19 vaccines?Īccording to the Joint Committee on Vaccination and Immunisation (JCVI), modelling of “the high level of protection afforded by the first dose suggests that initially “vaccinating a greater number of people with a single dose will prevent more deaths and hospitalisations than vaccinating a smaller number with two doses”.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |