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The risk of SARS-CoV-2 infection is particularly high for healthcare workers during the pandemic. Home care workers visit many different households per shift. Encounters with mostly elderly patients and their relatives increase the potential for the undetected spread of SARS-CoV-2. In order to gain insight into the seroprevalence of SARS-CoV-2 antibodies and possible transmission risks in outpatient care, this follow-up study was conducted with nursing services in Hamburg. The aim was to estimate the dynamics of seroprevalence in this occupational group over a 12-month period, to identify occupation-specific risk factors, and to collect information on the vaccination status of the surveyed nursing staff. Antibody testing for SARS-CoV-2 IgG against the S1 domain (EUROIMUN Analyser I® Lübeck, Germany) was performed on participating healthcare workers with patient contact at a total of four time points within one year from July 2020 to October 2021 (baseline, follow-up after three, six and twelve months). The data were mostly analysed descriptively. Differences in IgG titres were analysed using variance analysis methods, particularly Tukey’s range test. The seroprevalence was 1.2% (8/678) at baseline and 1.5% (9/581) at the three-month follow-up (T1). At the second follow-up (T2) after six months, vaccination against SARS-CoV-2 was available from January 2021 onwards. The prevalence rate of positive IgG antibodies relative to the S1 domain of the spike protein test among unvaccinated individuals was 6.5%. At (T3) after twelve months (July to October 2021), 482 participants were enrolled, and 85.7% of the workers were considered fully vaccinated at this time point, while 51 individuals were unvaccinated. The prevalence was 13.7% (7/51). In our study, a low seroprevalence was found among home care workers, which was lower than in our studies conducted in the clinical setting. Therefore, it can be assumed that the occupational risk of infection is rather low for both the nursing staff and the patients/clients cared for in the outpatient setting. The good provision of protective equipment and the high vaccination rate of the staff probably had a positive influence.

Abstract Background In the wake of the COVID‐19 pandemic, preliminary research has reported a significant decline in physical activity (PA) and an increase in sedentary behaviour (SB) among typically developed children and adolescents. Limited research has looked at the current situation of PA and SB during this pandemic among children and adolescents with intellectual disabilities (ID). This study investigated the situations about PA and SB among school‐aged children and adolescents with ID on China's mainland during the COVID‐19 outbreak. Methods In total, 837 parents of children and adolescents (ages 6–18 years) with ID from 15 special education schools of Shandong Province in China were recruited through convenience sampling in the study. Parents reported PA and SB among children and adolescents with ID through the Children's Leisure Activities Study Survey‐Chinese version (CLASS‐C) online questionnaires. Results From parents' reports, Chinese children and adolescents with ID during the COVID‐19 pandemic participated in approximately 10 min of moderate‐to‐vigorous physical activity, and engaged in approximately 530 min of SB every day. Meanwhile, only 17.4% of children and adolescents with ID were able to achieve the recommendation of 60 min of daily moderate‐to‐vigorous physical activity and 76.1% of children and adolescents with ID spent more than 2 h on SB per day. Additionally, the problems of decrease PA and excessive SB were more prominent in older adolescents with ID compared with younger children with ID. Conclusion In China, the low level of PA and high level of SB is particularly evident in children and adolescents with ID during the outbreak of COVID‐19. The great majority of children and adolescents with ID did not meet the recommended amount of PA while undergoing excessive SB under the long‐term home quarantine environment. Therefore, immediate attention and great effort should be made to deal with this severe situation among this vulnerable population in the mainland of China.

Abstract Background: COVID-19 is quickly becoming a global health issue. For the first time in the history of extremely contagious illnesses, a vaccine has been created in one year. Vaccination is having a beneficial impact across the globe. Elimination of this sickness is still far from the reality due to virus mutations. Methods: A descriptive, cross-sectional study was conducted to investigate the side effects of the COVID-19 vaccine among healthcare workers in Kosti Teaching Hospital, Sudan (October 2021- June 2022). Google forms were used to collect data. Samples were taken using total coverage. The data were analyzed using SPSS v28 and the association between variables was checked using the Q-square and Fisher's Exact Test. Result: This study includes (133) participants, the majority are female (77.4%) and the rest were male (22.6%) and the main age group is (37.98 ± 9.5 SD) years. About three-quarters of the study population )76.7%) showed side effects after getting a vaccine. The following adverse effects were experienced by study participants: mild pain at the injection site (77.5%), fever (65%), headache (50%) and fatigue (43%). About 7% were unable to work the next day owing to side effects. Significant differences were observed between the side effects and marital status; p-value = (.005), type of vaccine p-value = (.042) and age p-value = (.021). No significant differences between vaccine side effects and age, previous infection with COVID-19, gender, occupation, number of hours spent at work and infection with other chronic illnesses (p-value< 0.05). Conclusion: Based on current research, pain at the injection site is the most frequent adverse reaction, demonstrating the vaccine's safety and the absence of any problems or lethal effects. Additionally, these side effects don't significantly affect daily activities.

Absztrakt: 2019 decemberében új koronavírus okozta járvány ütötte fel a fejét a kínai Wuhanban. Az azonosított kórokozó egy új koronavírus, melyet „severe acute respiratory syndrome coronavirus 2”-nek, azaz SARS-CoV-2-nek neveztek el, az általa kiváltott légzési tünetegyüttes pedig a „coronavirus disease 2019”, azaz COVID–19 nevet kapta. Az Egészségügyi Világszervezet (WHO) a járványt 2020 márciusában pandémiává minősítette. Áttekintettük a jelenleg elérhető nemzetközi irodalmat a COVID–19-járvány vonatkozásában. Írásunkban az új koronavírus diagnosztikájára és prognosztikájára vonatkozó releváns információkat összegezzük. Részletezzük a klinikai gyanú felvetéséhez szükséges anamnesztikus tényezőket és kezdeti vizsgálati eredményeket, a mikrobiológiai mintavétel módját, a molekuláris diagnosztikai tesztre – az arany standardnak minősülő ’real-time’ reverztranszkriptáz polimeráz-láncreakcióra (RT-PCR) – vonatkozó alapvető információkat, különös tekintettel a diagnosztikus tesztelést érintő, jelenleg érvényben lévő népegészségügyi szabályozásra. Hangsúlyt fektetünk továbbá a nagy rizikójú betegek paramétereire és felismerésük módjára. A COVID–19-pandémia Magyarországon is jelentős járványügyi és egészségügyi következményekkel járhat. A járvány lassítására irányuló epidemiológiai intézkedéseken túl a már fertőzött személyek időbeli felismerése és megfelelő kórházi ellátása mortalitási szempontból is kulcskérdés. A kritikus állapotú betegek esélyeit csak magas minőségű, körültekintő intenzív terápiás ellátással lehet javítani, s hogy a legjobbat tudjuk nyújtani, hasznos, ha felhasználjuk a már endémiás országokban dolgozó orvoskollégák tapasztalatait. Orv Hetil. 2020; 160(17): 667–671.

Absztrakt: A WHO által 2020. március 11-én hivatalosan is pandémiának nyilvánított COVID–19-járvány ismét felhívja a figyelmet a telemedicina lehetőségeire. Az új koronavírus-fertőzés megfékezése érdekében, az ellátórendszer működtetése során, a fertőződés kockázatának maximális csökkentése mellett új utakat, módszereket, platformokat kell találnunk. Célunk, hogy szakirodalmi összegzéssel és gyakorlati szempontú útmutatók révén, valamint a hazai telefogászat különleges példáján keresztül bemutassuk, milyen kísérletek történtek a COVID–19-járvány kapcsán a telemedicinának az ellátásba való bevonására mind a nemzetközi, mind pedig a hazai ellátórendszerek különböző szintjein. Mind a nemzetközi, mind a hazai adatok azt mutatják, hogy a telemedicina kiemelt szerepű lehet a triázs folyamatában, a fertőzöttek korai kiemelésében, diagnosztizálásában, ellátásában, betegútjának menedzselésében úgy, hogy a szakszemélyzet nem érintkezik a potenciálisan fertőzött páciensekkel. Ugyancsak fontos szerepe van a gondozott, krónikus betegséggel élő páciensek állapotának távoli monitorozásában, ellátásában és a veszélyeztetett egészségügyi dolgozói csoport ellátásba való visszakapcsolásában. A potenciális előnyök mellett nem szabad megfeledkeznünk a telemedicinális ellátás korlátairól, ugyanakkor fontos kiemelni, hogy széles hozzáférhetősége miatt a veszélyhelyzet kapcsán kellő rugalmasságot adhat mind az alapellátás, mind a szakellátás számára. Éppen ezért mielőbb szükséges a hazai szakmai irányelveket, a jogi és a finanszírozási lehetőségeket e területen hosszú távon fenntartható módon is meghatározni.* Orv Hetil. 2020; 161(24): 983–992. *Megjegyzés: A jelen cikk írását 2020. április 30-án zártuk le. A COVID–19-pandémia és az ezzel kapcsolatos kutatások, vizsgálatok dinamikusan változnak azóta is.

AbstractOnly a few studies have assessed the long-term duration of the humoral immune response against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).In this nationwide longitudinal study from the Faroe Islands with close to full participation of all individuals on the Islands with PCR confirmed COVID-19 during the two waves of infections in the spring and autumn 2020 (n=172 & n=233), samples were drawn at three longitudinal time points (3, 7 and 12 months and 1, 3 and 7 months after disease onset, respectively).Serum was analyzed with a direct quantitative IgG antibody binding ELISA to detect anti–SARS-CoV-2 spike RBD antibodies and a commercially available qualitative sandwich RBD ELISA kit measuring total antibody binding.The seropositive rate in the convalescent individuals was above 95 % at all sampling time points for both assays. There was an overall decline in IgG titers over time in both waves (p < 0.001). Pairwise comparison showed that IgG declined significantly from the first sample until approximately 7 months in both waves (p < 0.001). After that, the antibody level still declined significantly (p < 0.001), but decelerated with an altered slope remaining fairly stable from 7 months to 12 months after infection. Interestingly, the IgG titers followed a U-shaped curve with higher antibody levels among the oldest (67+) and the youngest (0– 17) age groups compared to intermediate groups (p < 0.001).Our results indicate that COVID-19 convalescent individuals are likely to be protected from reinfection up to 12 months after symptom onset and maybe even longer. We believe our results can add to the understanding of natural immunity and the expected durability of SARS-CoV-2 vaccine immune responses.

Pneumocystis jiroveci pneumonia is a common pathology in HIV-infected but also in uninfected immunocompromised individuals. The pandemic coronavirus disease 2019 (COVID-2019) is a new type of coronavirus disease caused by SARS-COV-2, and the chest imaging is often used as complementary tool in patients’ evaluation. The imaging finding is similar with many pulmonary pathologies. Chest computed tomography scan is gold standard imaging and shows a central and diffuse distribution, ground- glass pattern with septal thickening with “crazy paving pattern.” We reported a case of 57-year-old man patient, followed in oncology for laryngeal cancer who presented of Pneumocystis jiroveci pneumonia during his follow-up. The diagnosis is confirmed by polymerase chain reaction with bronchoalveolar lavage fluid. Other immunochemical tests can be performed but are less specific. Both curative and preventive treatment in subjects at risk remains trimethoprim-sulfamethoxazole. Corticosteroid therapy may be associated depending on the case.

Introduction: Extracorporeal hemoadsorption (HA) is a potential adjunctive therapy in severe cases of COVID-19 associated pneumonia. In this retrospective study we report data from critically ill patients treated with HA during the first and second wave of the pandemic.Patients and Methods: All patients, who received HA therapy with CytoSorb within the first 96 h of intensive care unit (ICU) admission without hospital-acquired bacterial superinfection, were included. Clinical and laboratory data were collected: on admission, before (TB) and after (TA) HA therapy.Results: Out of the 367 COVID-19 cases, 13 patients were treated with CytoSorb, also requiring mechanical ventilation and renal replacement therapy. All patients were alive at the end of HA, but only 3 survived hospital stay. From TB-TA there was a tendency of decreasing norepinephrine requirement: 193.7 [IQR: 34.8–270.4] to 50.2 [6.5–243.5] ug/kg/day and increasing PaO2/FiO2 ratio 127.8 (95% CI: 96.0–159.6) to 155.0 (115.3–194.6) mmHg but they did not reach statistical significance (p = 0.14 and 0.58, respectively). Treatment related adverse events were not reported.Conclusion: The treatment was well-tolerated, and there was a tendency toward an improvement in vasopressor need and oxygenation during the course of HA. These observations render the need for prospective randomized trials.