Seroprevalence of anti-SARS-CoV-2 IgG antibodies pre- and post-COVID-19 vaccination in staff members of Bandar Abbas Children's Hospital.

Background: Healthcare workers (HCWs) have a higher risk of contracting coronavirus disease 2019 (COVID-19) compared to the general population due to their frontline role and direct contact with the infected patients. Accordingly, they were among the first groups to receive vaccination against COVID-19. A higher risk of COVID-19 infection may also exist among hospital staff members other than HCWs.

Radiolabeled vitamins as the potential diagnostic probes for targeted tumor imaging.

Nuclear medicine like single-photon emission computed tomography (SPECT) and positron emission tomography (PET) is one of the most sensitive methods for diagnostic imaging and radionuclide therapy which could lead to higher efficacy and reduced toxicity. There is enormous incentive to develop probes that detect lesions at earliest stages. Vitamins are biomolecules that play an important role in a variety of biological processes in animals and humans.

The utility of radiolabeled PSMA ligands for tumor imaging.

Prostate-specific membrane antigen (PSMA) is a glycosylated type-II transmembrane protein expressed in prostatic tissue and significantly overexpressed in several prostate cancer cells. Despite its name, PSMA has also been reported to be overexpressed in endothelial cells of benign and malignant non-prostate disease. So its clinical use was extended to detection, staging, and therapy of various tumor types.

Dysentery as the only presentation of COVID-19 in a child: a case report.

Introduction: The coronavirus disease 2019 (COVID-19) pandemic has caused irreparable damage to society, and the damage continues. Pediatricians are confronted with COVID-19 in a variety of presentations, which may lead to delayed diagnosis and treatment. Early diagnosis of the disease plays an important role in preventing transmission of the virus in the community.