Covid-19 vaccines tend to alleviate the symptoms of long Covid, according to a large survey of more than 800 people that suggests mRNA vaccines, in particular, are beneficial.
As vaccines hit the mainstream, concerns arose that vaccination could precipitate relapses or a worsening of symptoms. But conversely, anecdotal reports suggested that vaccines helped some people with long Covid.
Scores across 14 common long-Covid symptoms were compared before and after the first vaccine dose. Data showed that 56.7% of respondents experienced an overall improvement in symptoms, with 24.6% remaining unchanged and 18.7% reporting a deterioration in their symptoms.
In general, those who received mRNA vaccines (Pfizer/BioNTech or Moderna) reported more improvements in symptoms, compared with those who got an adenovirus vaccine (Oxford/AstraZeneca). In particular, those who received the Moderna vaccine were more likely to see improvements in symptoms such as fatigue, brain fog and muscle pain, and less likely to report a deterioration, the analysis found.
Calgary-based Providence Therapeutics says its vaccine produced no serious adverse events and developed good antibodies against COVID-19 that “compare favourably” with the two mRNA vaccines already on the market from Pfizer and Moderna.
Covid-19 vaccines tend to alleviate the symptoms of long Covid, according to a large survey of more than 800 people that suggests mRNA vaccines, in particular, are beneficial.
As vaccines hit the mainstream, concerns arose that vaccination could precipitate relapses or a worsening of symptoms. But conversely, anecdotal reports suggested that vaccines helped some people with long Covid.
Scores across 14 common long-Covid symptoms were compared before and after the first vaccine dose. Data showed that 56.7% of respondents experienced an overall improvement in symptoms, with 24.6% remaining unchanged and 18.7% reporting a deterioration in their symptoms.
In general, those who received mRNA vaccines (Pfizer/BioNTech or Moderna) reported more improvements in symptoms, compared with those who got an adenovirus vaccine (Oxford/AstraZeneca). In particular, those who received the Moderna vaccine were more likely to see improvements in symptoms such as fatigue, brain fog and muscle pain, and less likely to report a deterioration, the analysis found.
https://www.theguardian.com/society/2021/may/18/long-covid-symptoms-ease-after-vaccination-survey-finds
Oxford/AstraZeneca 属于adenovirus vaccine, 毒性比较小的腺病毒，“但还是活的病毒”, 有些造成血管堵塞的副作用.
中国所做的是灭活疫苗，在细胞上面养活病毒，养很大把它纯化再打死.
Calgary-based Providence Therapeutics says its vaccine produced no serious adverse events and developed good antibodies against COVID-19 that “compare favourably” with the two mRNA vaccines already on the market from Pfizer and Moderna.
https://bbs.wenxuecity.com/bbs/health/969625.html