Browsing by Subject "Breakthrough infection"

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    Outcome of SARS-CoV-2 variant breakthrough infection in fully immunized solid organ transplant recipients
    (Elsevier, 2022) Almaghrabi, Reem S.; Alhamlan, Fatimah S.; Dada, Ashraf; Al-Tawfiq, Jaffar A.; Al Hroub, Mohammad K.; Saeedi, Mohammed F.; Alamri, Maha; Alhothaly, Bushra; Alqasabi, Abdulmohsin; Al-Qahtani, Ahmed A.; Al-Omari, Awad; Alshukairi, Abeer N.; Medicine, School of Medicine
    SARS-CoV-2 vaccination in solid organ transplant recipients is associated with suboptimal immune response and risk for breakthrough infection. It is not known whether they are at risk of severe post-vaccine breakthrough infections in the presence of SARSCoV-2 variant of concern. We describe a case series of four fully vaccinated solid organ transplant recipients who developed SARS-CoV-2 variants of concern breakthrough infections. Three patients received BNT162b2 mRNA (Pfizer-BioNTech) and one patient received ChAdOx1 (AZD12220) COVID-19 vaccines. The patients were infected with SARS-CoV-2 variants circulating in Saudi Arabia. Two patients were infected with Alpha variant and had severe pneumonia requiring intensive care admission and ventilatory support and subsequently died. The other two patients recovered; one patient was infected with Beta variant required low supplemental oxygen via nasal flow and the other patient was infected with Delta variant and required high supplemental oxygen nasal flow. Younger patients had a better outcome than older patients. Future large studies are required to confirm our observations and to compare the different vaccine efficacy among solid organ transplants in the era of SARS-CoV-2 variants of concern.
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    SARS-CoV-2 vaccination and risk of severe COVID-19 outcomes in patients with autoimmune hepatitis
    (Elsevier, 2022-10) Efe, Cumali; Taşçılar, Koray; Gerussi, Alessio; Bolis, Francesca; Lammert, Craig; Ebik, Berat; Stättermayer, Albert Friedrich; Cengiz, Mustafa; Gökçe, Dilara Turan; Cristoferi, Laura; Peralta, Mirta; Massoumi, Hatef; Montes, Pedro; Cerda, Eira; Rigamonti, Cristina; Yapalı, Suna; Adali, Gupse; Çalışkan, Ali Rıza; Balaban, Yasemin; Eren, Fatih; Eşkazan, Tuğçe; Barutçu, Sezgin; Lytvyak, Ellina; Zazueta, Godolfino Miranda; Kayhan, Meral Akdogan; Heurgue-Berlot, Alexandra; De Martin, Eleonora; Yavuz, Ahmet; Bıyık, Murat; Narro, Graciela Castro; Duman, Serkan; Hernandez, Nelia; Gatselis, Nikolaos K.; Aguirre, Jonathan; Idilman, Ramazan; Silva, Marcelo; Mendizabal, Manuel; Atay, Kadri; Güzelbulut, Fatih; Dhanasekaran, Renumathy; Montano-Loza, Aldo J.; Dalekos, George N.; Ridruejo, Ezequiel; Invernizzi, Pietro; Wahlin, Staffan; Medicine, School of Medicine
    Background Data regarding outcome of Coronavirus disease 2019 (COVID-19) in vaccinated patients with autoimmune hepatitis (AIH) are lacking. We evaluated the outcome of COVID-19 in AIH patients who received at least one dose of Pfizer- BioNTech (BNT162b2), Moderna (mRNA-1273) or AstraZeneca (ChAdOx1-S) vaccine. Patients and methods We performed a retrospective study on AIH patients with COVID-19. The outcomes of AIH patients who had acute respiratory syndrome coronavirus 2 (SARS-CoV-2) breakthrough infection after at least one dose of COVID-19 vaccine were compared to unvaccinated patients with AIH. COVID-19 outcome was classified according to clinical state during the disease course as: (i) no hospitalization, (ii) hospitalization without oxygen supplementation, (iii) hospitalization with oxygen supplementation by nasal cannula or mask, (iv) intensive care unit (ICU) admission with non-invasive mechanical ventilation, (v) ICU admission with invasive mechanical ventilation or (vi) death, and data was analyzed using ordinal logistic regression. Results We included 413 (258 unvaccinated and 155 vaccinated) patients (81%, female) with a median age of 52 (range: 17–85) years at COVID-19 diagnosis. The rates of hospitalization were (36.4% vs. 14.2%), need for any supplemental oxygen (29.5% vs. 9%) and mortality (7% vs. 0.6%) in unvaccinated and vaccinated AIH patients with COVID-19. Having received at least one dose of SARS-CoV-2 vaccine was associated with a significantly lower risk of worse COVID-19 severity, after adjusting for age, sex, comorbidities and presence of cirrhosis (adjusted odds ratio [aOR] 0.18, 95% confidence interval [CI], 0.10–0.31). Overall, vaccination against SARS-CoV-2 was associated with a significantly lower risk of mortality from COVID-19 (aOR 0.20, 95% CI 0.11–0.35). Conclusions SARS-CoV-2 vaccination significantly reduced the risk of COVID-19 severity and mortality in patients with AIH.