SF: We don’t know for certain. Keep in mind first that the majority, if not all, vaccine-induced uncomfortable side effects seem inside the first two months of immunization, which is strictly what has occurred with Covid-19 vaccines. We all know that there’s a threat of uncommon blood clots with the AstraZeneca and Johnson & Johnson vaccines amongst these youthful than 40 or 50, however solely after the primary dose, so a 3rd shot of those vaccines in those that already had two must be okay. Nonetheless, these pictures use a viral vector that the immune system could come to acknowledge, probably making a 3rd shot much less efficient. With the mRNA vaccines from Pfizer-BioNTech and Moderna, there’s a threat of coronary heart irritation in youthful people after the second shot, which can improve after a 3rd. Mixing vaccines could present a more practical increase, however might also introduce or heighten the above unusual dangers. Scientific trials occurring now will present extra info, however they could not inform us a lot about uncommon uncomfortable side effects. As for dosing, information from the U.Ok., which is considered one of two nations together with Canada which have systematically used an extended dosing interval between the primary and the second shot, means that the safety afforded by this schedule was not less than nearly as good if not higher. We nonetheless don’t know whether or not the immunity will wane at a slower tempo. U.Ok. information doesn’t handle this but; we’d like extra time to get a greater image.
https://www.washingtonpost.com/enterprise/12-of-todays-most-pressing-covid-questions-answered/2021/09/09/9477af76-1165-11ec-baca-86b144fc8a2d_story.html?utm_source=rss&utm_medium=referral&utm_campaign=wp_business | 12 of As we speak’s Most Urgent Covid Questions Answered