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Erschienen in: Journal of General Internal Medicine 6/2022

Open Access 22.02.2022 | COVID-19 | Concise Research Report

Symptoms After COVID-19 Vaccination in Patients with Post-Acute Sequelae of SARS-CoV-2

verfasst von: Mayssam Nehme, MD, Olivia Braillard, MD, Julien Salamun, MD, Frédérique Jacquerioz, MD, Delphine S. Courvoisier, PhD, Hervé Spechbach, MD, Idris Guessous, MD, PhD

Erschienen in: Journal of General Internal Medicine | Ausgabe 6/2022

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INTRODUCTION

While post-acute sequelae of SARS-CoV-2 are increasingly recognized,1 studies are still needed to identify risk factors, treatment options, and the duration and evolution of symptoms. Vaccination against SARS-CoV-2 prevents infection and acute complications. However, once infected, it is unclear whether vaccination can help prevent or improve long COVID or post-acute sequelae of SARS-CoV-2.2,3 In this study, we describe the association of vaccination and the evolution of six cardinal symptoms embodying post-acute sequelae of SARS-CoV-2.

METHODS

From April 23 to July 27, 2021, an online survey was sent to 6987 individuals who previously tested positive for SARS-CoV-2 infection (RT-PCR test) at the outpatient testing center of the Geneva University Hospitals, Switzerland. The survey inquired about post-acute sequelae of SARS-CoV-2 and vaccination status. At the time of the study, the public health recommendations in Switzerland were for previously infected individuals to preferably receive one dose of vaccination only. Data was collected using REDCap v11.0.3 and analyzed using Stata, version 15.1 (StataCorp). The outcome of persistence of symptoms was defined as having any of the following: fatigue, difficulty concentrating or memory loss, loss of or change in smell, loss of or change in taste, shortness of breath, and headache. These six cardinal symptoms were chosen to characterize persistent symptoms post-SARS-CoV-2 based on previous studies.1,4

RESULTS

Overall, 2094 participants answered the survey (response rate 29.9%). Of symptomatic participants, n = 1596 reported their symptoms developed after SARS-CoV-2 infection and that their comorbidities, when applicable, pre-dated the infection (characteristics in Table 1).
Table 1
Characteristics of Participants (n = 1596)
Age mean ± SD yr
43.5 ± 13.7
 
N (%)
Age categories
Below 40 yr
704 (44.1)
40–59 yr
697 (43.7)
60 yr and above
195 (12.2)
Sex
Female
883 (55.3)
Male
713 (44.7)
Time from infection to survey
3–6 months
33 (2.1)
6–9 months
1140 (71.4)
9–12 months
184 (11.5)
More than 12 months
239 (15.0)
Smoking status
Never smoked
874 (54.8)
Current smoker
235 (14.7)
Ex-smoker
450 (28.2)
Prefer not to answer
37 (2.3)
Comorbidities
None
858 (53.8)
Overweight
179 (11.2)
Sleeping disorder
122 (7.6)
Hypertension
111 (7.0)
Migraine
106 (6.6)
Anxiety
76 (4.8)
Other comorbidities
63 (3.9)
Depression
56 (3.5)
Other arthritis
56 (3.5)
Irritable bowel syndrome
54 (3.4)
Obesity
49 (3.1)
Respiratory disease
48 (3.0)
Tendinitis
47 (2.9)
Tension headache
44 (2.8)
Hypothyroidism
39 (2.4)
Cardiovascular disease
34 (2.1)
Anemia
33 (2.1)
Attention deficit
33 (2.1)
Diabetes
29 (1.8)
Other digestive disorder
27 (1.7)
Memory disorder
26 (1.6)
Other types of headache
24 (1.5)
Chronic fatigue
24 (1.5)
Immunosuppression
15 (0.9)
Dysmenorrhea
14 (0.9)
Hyperthyroidism
11 (0.7)
Chronic pain syndrome
10 (0.6)
Other neurological disorder
10 (0.6)
Rheumatoid arthritis
10 (0.6)
HIV
8 (0.5)
Thrombosis
8 (0.5)
Multiple sclerosis
6 (0.4)
Fibromyalgia
5 (0.3)
Crohn’s disease
5 (0.3)
Ulcerative colitis
5 (0.3)
Ankylosing spondylitis
5 (0.3)
Cancer
3 (0.2)
Renal disease
3 (0.2)
Other psychiatric disorders
3 (0.2)
Lupus
3 (0.2)
Reactive arthritis
2 (0.1)
Sjogren disease
1 (0.1)
SD standard deviation, yr year
Proportions of vaccinated participants included in our study were 47.1% (26.6% one dose, 20.5% two doses), compared to 65.3% of 228 asymptomatic participants (17.5% one dose, 47.8% two doses), and 69.0% of eligible adults in the general population by the end of July 2021 (18.8% one dose, 50.2% two doses).
Following vaccination, symptoms disappeared (30.8%) or improved (4.7%) in 35.5% of cases, were stable in 28.7% of cases, and worsened in 3.3% of cases. Symptoms’ evolution was reported as other in 29.0% of cases and 2.6% preferred not to answer. Symptoms’ improvement or worsening occurred within 5 days post-vaccination in 69.6% and 82.3% of cases respectively. Vaccination (one or two doses) was associated with a decreased prevalence of the six cardinal post-SARS-CoV-2 symptoms (adjusted odds ratio, aOR 0.72; 0.56–0.92). Vaccination with 2 doses was associated with a decreased prevalence of dyspnea (aOR 0.34; 0.14–0.82) and change in taste (0.38; 0.18–0.83) as well as a decreased prevalence of any one symptom (aOR 0.60; 0.43–0.83) (details in Fig. 1).

DISCUSSION

Vaccination was associated with a decreased prevalence of post-acute sequelae of SARS-CoV-2 infection compared to no vaccination. A recent study2 had shown similar results on a smaller scale (n = 36), and a pre-print with 900 participants3 showed improvement in 56.7% of cases post-vaccination, versus worsening (18.7%) and stability (24.6%). Another pre-print with 545 infected individuals showed that vaccination lowered symptom severity at 120 days.5 Postulated hypotheses include the potential correction of dysregulated immune or inflammatory responses, or the possible elimination of persisting viruses or viral remnants of SARS-CoV-2.6
Our study includes several limitations. It is challenging to attribute symptom improvement to vaccination versus other concomitant factors, with a potential indication bias if more symptomatic individuals preferred to withhold vaccination. To mitigate this potential bias, we adjusted for comorbidities and included only individuals with new symptoms post-infection. Also, while we cannot formally exclude indication bias, and specific new symptoms post-vaccination, we found no association between having symptoms prior to vaccination (at the time of testing) and vaccination rates. This suggests that more symptomatic participants were not more likely to get vaccinated (data not shown). Vaccinated participants also had a slightly longer time interval between the infection and the survey (14 days on average), mitigated by adjusting for time from infection. Finally, while our study is to date one of the largest, it lacked power for some stratified analyses, such as the impact of one vaccination dose. While acknowledging these limitations, we believe that the strength of the association, as well as a dose-response effect, could support a causal association, in addition to possible biological rationales evoked recently.6 If confirmed, this would mean that vaccination not only prevents infection but also can potentially improve post-acute sequelae of SARS-CoV-2.

Acknowledgements

We thank all co-investigators who participated in this study, Pr. Francois Chappuis, Pr. Laurent Kaiser, and the CoviCare Study Team for their ongoing support in the research on post-acute sequelae of SARS-CoV-2 in Geneva, Switzerland.

Declarations

Conflict of Interest

The authors declare that they do not have a conflict of interest.

Ethical approval

We confirm that the manuscript has been read and approved by all named authors and that there are no other persons who satisfied the criteria for authorship but are not listed.
We further confirm that any aspect of the work covered in this manuscript that has involved human patients has been conducted with the ethical approval of the Cantonal Research Ethics Commission of Geneva, Switzerland, and that such approvals are acknowledged within the manuscript.
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://​creativecommons.​org/​licenses/​by/​4.​0/​.

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Literatur
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Zurück zum Zitat Nehme M, Braillard O, Chappuis F, Courvoisier DS, Guessous I. Prevalence of Symptoms More Than Seven Months After Diagnosis of Symptomatic COVID-19 in an Outpatient Setting. Ann Intern Med. 2021. doi: https://doi.org/10.7326/M21-0878. Nehme M, Braillard O, Chappuis F, Courvoisier DS, Guessous I. Prevalence of Symptoms More Than Seven Months After Diagnosis of Symptomatic COVID-19 in an Outpatient Setting. Ann Intern Med. 2021. doi: https://​doi.​org/​10.​7326/​M21-0878.
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Zurück zum Zitat Arnold DT, Milne A, Samms E, Stadon L, Maskell NA, Hamilton FW. Symptoms After COVID-19 Vaccination in Patients With Persistent Symptoms After Acute Infection: A Case Series. Ann Intern Med. 2021:M21-1976. 10.7326/M21-1976. Arnold DT, Milne A, Samms E, Stadon L, Maskell NA, Hamilton FW. Symptoms After COVID-19 Vaccination in Patients With Persistent Symptoms After Acute Infection: A Case Series. Ann Intern Med. 2021:M21-1976. 10.7326/M21-1976.
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Metadaten
Titel
Symptoms After COVID-19 Vaccination in Patients with Post-Acute Sequelae of SARS-CoV-2
verfasst von
Mayssam Nehme, MD
Olivia Braillard, MD
Julien Salamun, MD
Frédérique Jacquerioz, MD
Delphine S. Courvoisier, PhD
Hervé Spechbach, MD
Idris Guessous, MD, PhD
Publikationsdatum
22.02.2022
Verlag
Springer International Publishing
Erschienen in
Journal of General Internal Medicine / Ausgabe 6/2022
Print ISSN: 0884-8734
Elektronische ISSN: 1525-1497
DOI
https://doi.org/10.1007/s11606-022-07443-2

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