An analysis of antibody response following the second dose of CoronaVac and humoral response after booster dose with BNT162b2 or CoronaVac among healthcare workers in Turkey.

Limited data are available on the short- to midterm levels of antibodies to the CoronaVac vaccine and quantitative change in humoral response after homologous or heterologous booster doses. In this prospective cohort study, we evaluated the anti-receptor-binding domain (RBD) immunoglobulin G (IgG) levels after two doses of CoronaVac and heterologous/homologous booster administration among healthcare workers in a university hospital in Turkey. Quantitative anti-RBD IgG antibody levels were measured at first and fourth months in 560 healthcare workers who had completed two doses of CoronaVac vaccine, and within 2 months after the third dose of CoronaVac or BNT162b2.

A Rare Tumor of Palatine Tonsils: Chondrolipoma.

Chondrolipomas are benign mesenchymal tumors that have two mature tissues simultaneously and emerge as a result of cartilaginous metaplasia in lipomas. They rarely occur in the head and neck area (1%-4%), and occur more frequently in the 60-70 years age group. Although there are cases of the nasopharynx, tongue, lip, and neck reported in the literature, we have been able to find only two cases on tonsils.

25-gauge sutureless vitrectomy in osteogenesis imperfecta type I.

Purpose: To report a case with type I osteogenesis imperfecta (OI) with intravitreal opacities who underwent 25-gauge sutureless vitrectomy.

Methods: A 2.5-year-old girl with OI type I who presented with intravitreal opacities underwent 25-gauge sutureless vitrectomy.