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1.
Vaccine ; 40(40): 5752-5756, 2022 09 22.
Article in English | MEDLINE | ID: covidwho-1996609

ABSTRACT

AIM: To estimate neutralizing antibody (NAb) immunity against SARS-CoV-2 in 739 healthcare personnel (HCP) vaccinated with three doses of BNT162b2 mRNA vaccine. METHODS: Serum samples were collected at 3, 6, and 9 months after the second vaccine dose and at 7-55 days after the third dose. Samples were tested for NAbs against SARS-CoV-2 receptor binding domain. RESULTS: The mean inhibition rates at 3, 6, and 9 months after the second dose were 86.33%, 73.38%, and 61.18%, and increased to 95.57% after the booster dose. Younger HCP and HCP with past SARS-CoV-2 infection had higher inhibition rates while there was an inverse correlation between NAb levels and comorbidities or tobacco use (p-values < 0.001). Increased NAb titers were also noticed in women (p-value = 0.033), especially at the end of the 9-month study period. CONCLUSION: NAb levels increased considerably after a booster mRNA vaccine dose. Host factors and past SARS-CoV-2 infection influence NAb titers.


Subject(s)
COVID-19 , Viral Vaccines , Antibodies, Neutralizing , Antibodies, Viral , BNT162 Vaccine , COVID-19/prevention & control , Delivery of Health Care , Female , Humans , RNA, Messenger , SARS-CoV-2 , Vaccines, Synthetic , mRNA Vaccines
3.
Journal of Affective Disorders Reports ; : 100339, 2022.
Article in English | ScienceDirect | ID: covidwho-1739843

ABSTRACT

This study investigated the mental health among 187 final-year-senior-high-school students during the six-months pandemic-related lockdown. Above the thresholds on GAD-7 for severe anxiety (≥17) and PHQ-9 for severe depressive symptoms (≥20) scored 20.3% and 20.7% respectively. Higher levels of experienced lockdown distress and increased conflicts with parents were associated with higher anxiety and depression levels;COVID-related worry was associated only with anxiety, whereas having any family health problem with depression only. Thematic analysis of the open-ended survey item provided a means of gaining students’ perspective regarding the challenges aggravated by the pandemic during the process of preparing for the exams. The findings call to action aiming at mitigating mental health risks of the on-going pandemic on youth's mental health.

4.
Healthcare (Basel) ; 10(1)2022 01 13.
Article in English | MEDLINE | ID: covidwho-1636030

ABSTRACT

The global spread of COVID-19 led the World Health Organization to declare a pandemic on 11 March 2020. To decelerate this spread, countries have taken strict measures that have affected the lifestyles and economies. Various studies have focused on the identification of COVID-19's impact on the mental health of children and adolescents via traditional statistical approaches. However, a machine learning methodology must be developed to explain the main factors that contribute to the changes in the mood state of children and adolescents during the first lockdown. Therefore, in this study an explainable machine learning pipeline is presented focusing on children and adolescents in Greece, where a strict lockdown was imposed. The target group consists of children and adolescents, recruited from children and adolescent mental health services, who present mental health problems diagnosed before the pandemic. The proposed methodology imposes: (i) data collection via questionnaires; (ii) a clustering process to identify the groups of subjects with amelioration, deterioration and stability to their mood state; (iii) a feature selection process to identify the most informative features that contribute to mood state prediction; (iv) a decision-making process based on an experimental evaluation among classifiers; (v) calibration of the best-performing model; and (vi) a post hoc interpretation of the features' impact on the best-performing model. The results showed that a blend of heterogeneous features from almost all feature categories is necessary to increase our understanding regarding the effect of the COVID-19 pandemic on the mood state of children and adolescents.

5.
Exp Ther Med ; 22(4): 1162, 2021 Oct.
Article in English | MEDLINE | ID: covidwho-1377025

ABSTRACT

Since its outbreak, in December, 2019, in the Chinese city of Wuhan, coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has evolved into an ongoing global pandemic. Due to the novel antigenic properties of this virus, the world population could not develop immunity effectively and this led to the subsequent spread of COVID-19. This caused an unprecedented emergency situation with significant negative effects on health and well-being both on an individual and societal level. Apart from health, economic and social consequences, the impact of this pandemic on mental health is increasingly being reported in the scientific literature. The present review aimed to provide a comprehensive discussion of the possible neurological and neuropsychiatric manifestations of SARS-CoV-2, together with the related underlying molecular pathways. In addition, the present review focused on populations which are at a higher risk of developing psychiatric disturbances due to the COVID-19 pandemic and discussed possible routes of clinical management and therapeutics to minimize the burden associated with psychiatric disorders. Moreover, research findings exploring the prevalence of COVID-19-related post-traumatic stress disorder (PTSD) symptoms across vulnerable groups, including children, adolescents and COVID-19 survivors are presented, with particular emphasis on those with severe disease who required hospitalization and/or intensive care unit admission. Based on the available literature, the identification of potential determinants associated with PTSD across the different populations is underlined. Lessons learnt from the pandemics across the globe together with the ongoing research on COVID-19 and its impact on mental health, highlight the utmost importance for evidence-based, proactive and targeted interventions in high-risk groups aiming to mitigate the risks and manage vulnerabilities.

6.
Psychiatry Res ; 295: 113560, 2021 01.
Article in English | MEDLINE | ID: covidwho-912542

ABSTRACT

The two-year preparation for the National university entrance exams in Greece is one of the most trying periods in a young person's life, physically and emotionally. The present study reports the results from 442 last year senior high school students who completed an online survey (16-30 April 2020) concerning the lockdown impact on their mental health. Overall, the rate of positive screen for depression (PHQ-9 score ≥ 11) significantly increased from 48.5% to 63.8% and of those scoring within severe depression range (PHQ-9 ≥20) from 10% to 27%; for anxiety (GAD-7 score ≥ 11) increased from 23.8% to 49.5% and of those scoring within severe anxiety range (GAD-7≥17) from 3.8% to 20.5%. After taking sex and baseline (one month prior to the lockdown) levels of depression and anxiety into account, the level of lockdown experienced distress was predictive of depression and anxiety levels in time of home confinement, accounting for about 30% of variance in symptoms severity scores. Although our results may be subject to sampling and recall bias, the unexpectedly high rates of anxiety and depression warrant an urgent call to action aiming at mitigating and managing mental health risks of senior high school students in future waves of pandemic.


Subject(s)
Anxiety/epidemiology , COVID-19 , Communicable Disease Control , Depression/epidemiology , Depressive Disorder/epidemiology , Mental Health/statistics & numerical data , Students/statistics & numerical data , Adolescent , COVID-19/prevention & control , Female , Greece/epidemiology , Humans , Male
7.
Ir J Psychol Med ; 37(3): 226-230, 2020 Sep.
Article in English | MEDLINE | ID: covidwho-259103

ABSTRACT

After coming out of the state debt crisis, Greece is facing yet another crisis - that of the COVID-19 pandemic. The key challenges facing the organizational structure and function of the Greek public health system in order to meet the populations' health needs are discussed. Social distancing, through imposed national lockdown very early in the pandemic, has been a key emergency public health measure that has saved lives. However, the system needs to enhance its capacity, through strengthening primary health and social support care, to be able to meet existing unmet health needs, the impact of the pandemic on mental health, as well as to tackle future new waves of outbreak. The related changes in health service provisions in response to the COVID-19 pandemic call for developing new models and novel approaches for delivering effective mental health services.


Subject(s)
Betacoronavirus , Coronavirus Infections/psychology , Mental Disorders/therapy , Mental Health Services , Pneumonia, Viral/psychology , Public Health/methods , COVID-19 , Greece , Humans , Mental Disorders/psychology , Pandemics , SARS-CoV-2
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