ABSTRACT
Introduction: Multiple sclerosis (MS) is an often-disabling disease of the central nervous system (CNS). The possible triggers of its first presentation such as stressful events, viral infections, vaccinations, and labor are still a matter of debate among scientists. Considering the possible role of infections in MS onset and the reported cases of CNS demyelination following COVID-19 infection and variety of COVID-19 vaccines, this study was conducted to investigate and compare the possible social, environmental, and physical triggers of MS onset before and during the COVID-19 pandemic. Material(s) and Method(s): A cross-sectional study was conducted from 28 February 2022 to 9 June 2022. A researcher-made questionnaire was designed in MS research center of Iran and distributed as an online google form on social media among 1340 Iranian MS patients. Demographic information, MS disease-related data, possible MS triggers (stressful life events, COVID-19 and other infections, COVID-19 and other vaccines, pregnancy or labor, head trauma, surgery, weight loss) were recorded. Patients were divided into two groups regarding the time of MS diagnosis (before and during the COVID-19 pandemic). Binary logistic regression method was used to determine the possible association between patient-reported triggers and diagnosis time (before and during the pandemic) adjusting for possible confounders. Result(s): Of 920 participants, 670 (72.8 %) were female, and the mean age (SD) was 35.63 (+/-8.1). The majority of participants 637 (69.2%) had non-progressive forms of MS, and only 70 (7.6 %) needed assistance for ambulation. The time of MS diagnosis was before the start of the COVID-19 pandemic in 635 (69 %) participants. The differences between the most common first symptoms which led to MS diagnosis, visual type (n: 317 (49.9 %)) before the pandemic and sensory type (n: 170 (59.6 %)) after the pandemic were significant (p-values: 0.008 and <0.01 respectively). A stressful life event was the most common patient-reported MS trigger in both groups, (n: 356 (56.1%)) in patients who were diagnosed before the COVID-19 pandemic, and (n: 156 (54.7%)) in the latter group. Comparing two groups (MS diagnosed before and during the pandemic), economic problems (AOR: 1.81;95%ACI: 1.23-2.65) and job loss (AOR: 2.89;95%ACI: 1.37-6.08) were significantly more frequent stressful life event which trigger MS onset in the latter group while, the stress of occupational or educational exams (AOR: 0.52;95%ACI: 0.34-0.79) was more prevalent in the first group. Conclusion(s): Social triggers such as stressful life events are closely associated with MS onset that had been increased in some categories after the COVID-19 pandemic. If truly recognized, they could be used to prevent the development and exacerbation of the disease.Copyright © 2022
ABSTRACT
Background: Now that the majority of the population has been immunized with two-dose vaccines, debates over the third booster dose have been raised. We studied the viewpoint of cases with multiple sclerosis (MS) on this matter. Method(s): In a cross-sectional study, a google form containing questions about participants' characteristics, the history of coronavirus disease 2019 (COVID-19) infection and vaccination, and opinions on the third dose was designed. Result(s): Of 1067 responders, only 16 (1.5%) were not vaccinated at all. The most used vaccine type was Sinopharm BBIBP COVID-19 vaccine (BBIBP-CorV) (n = 1002, 93.9%). Generally, 58 (5.4%) cases were hospitalized due to COVID-19. Of those with full vaccination, 134 (13.3%) got COVID-19 infection after the second dose. Only 13 participants (1%) did not agree with the third dose, while 564 (53.0%) believed that a booster dose was needed. Of all, 488 (45.7%) declared that they did not have a final idea and would follow the instructions by the experts. A significant association was found between not receiving the first two doses and not believing in the third dose (P = 0.001). 692 patients declared their reasoning for the importance of the third dose. All the cases who thought the administered vaccine was not efficient enough had received Sinopharm BBIBP-CorV. Those who got infected after full vaccination were more uncertain about the efficacy of the vaccine [odds ratio (OR): 2.6, 95% confidence interval (CI): 1.6-4.2]. Conclusion(s): It seems that the majority of the Iranian patients with MS expect the authorities to administer a third booster dose, especially if scientifically validated. Copyright © 2022 Iranian Neurological Association, and Tehran University of Medical Sciences Published by Tehran University of Medical Sciences.
ABSTRACT
Shortly after the onset of the coronavirus pandemic, different vaccines were developed to combat it. The vaccines had different mechanisms and triggered cellular and humoral immune responses against the virus. In addition to their positive effects, various side effects have been reported for them. They rarely cause severe complications. They can also rarely trigger latent infections. The present case report presents a patient who developed herpes simplex encephalitis after receiving the second dose of the Covaxin (BBV152). © 2022 Tehran University of Medical Sciences.