Publications by authors named "Ratna Sari Wijaya"

Patients with protein S (PS) deficiency possibly have a higher risk of developing severe COVID-19 disease. Therefore, vaccination against SARS-CoV-2 infections is recommended for PS-deficient patients. However, there are limited data regarding the safety and immunogenicity of the currently available COVID-19 mRNA vaccine in PS-deficient patients.

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We describe five healthcare workers (HCWs) with a recurrence of asymptomatic SARS-CoV-2 infection at Siloam Teaching Hospital, Indonesia. All cases involved nurses, with an average age of 27 years. The RT-PCR assay confirmed the first and second infection episodes.

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Article Synopsis
  • Health care workers (HCWs) in Indonesia are prioritized for COVID-19 vaccination and received a third dose of the mRNA-1273 vaccine after two doses of the inactivated CoronaVac vaccine to boost their immunity.
  • The study evaluated the increase in antibodies against the SARS-CoV-2 spike protein after the mRNA-1273 booster dose, finding a significant rise in antibody levels among 90 HCWs who had not been previously infected.
  • Results showed that all participants had a substantial increase in antibody levels post-boost, with age negatively impacting the antibody response, indicating that the heterologous vaccination approach is effective in enhancing protection against COVID-19.
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The presented cases describe the concurrent SARS-CoV-2 infection and inactivated SARS-CoV-2 vaccination among eight healthcare workers (HCWs). These cases highlighted the importance of broad hospital screening during the COVID-19 vaccination campaign. Further study regarding the durability of antibody response induced by infection and first-dose vaccination is required to determine the appropriate time for giving a second dose of inactivated SARS-CoV-2 vaccine among these cases.

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Background: As healthcare workers (HCWs) are at high risk for infection with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), they have priority for receipt of the coronavirus disease 2019 (COVID-19) vaccine. The inactivated SARS-CoV-2 vaccine has been used in Indonesia to induce an antibody response against SARS-CoV-2 infection in HCWs. However, information regarding the kinetics of antibodies induced by this vaccine remains scarce.

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Background & Aims: Coronavirus disease 2019 (COVID-19) has a wide clinical spectrum, ranging from asymptomatic infection to severe diseases with high mortality rate. Early identification of high-risk COVID-19 patients may be beneficial to reduce morbidity and in-hospital mortality. This study aimed to investigate whether baseline levels of inflammatory markers such as C-reactive protein (CRP) and immune-cell-based inflammatory indices, neutrophil to lymphocyte ratio (NLR), derived-NLR (d-NLR), and platelet to lymphocyte ratio (PLR) at hospital admission are associated with adverse disease outcomes in COVID-19 patients.

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Background: Healthcare workers (HCWs) are at increased risk of exposure to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the cause of coronavirus disease 2019 (COVID-19), compared with the general population. Therefore, they are given priority for the COVID-19 vaccine in the national COVID-19 vaccination campaign in Indonesia. However, while the daily number of new COVID-19 cases remains high, and data regarding the efficacy of the vaccine in healthcare settings remain unavailable, vaccinated HCWs remain at risk of COVID-19 infection and further transmission.

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