A Rare Case of Lemierre's Syndrome Caused by Streptococcus pyogenes.

Lemierre's syndrome (LS) is a rare condition characterized by septic thrombophlebitis of the internal jugular vein (IJV). Typically, the primary infection originates in the oropharynx, progressing to the lateral pharyngeal space, IJV, and potentially leading to bacteremia. Through septic embolization, these patients can develop severe complications, underscoring the importance of early diagnosis.

Idiopathic Transient Osteoporosis of the Hip: A Frequently Overlooked and Misdiagnosed Cause of Hip Pain.

Idiopathic transient osteoporosis of the hip (ITOH) is a rare and self-limiting condition of unknown origin, typically responding well to conservative treatment. It is characterized by progressive pain, claudication, and osteoporosis of the femoral head, while the joint line remains preserved. Early clinical and radiological findings can be misinterpreted as aseptic necrosis, infection, or neoplastic processes, making careful exclusion of these conditions essential.

Vaccination opportunity in children up to 6 months old born in 2017 and 2018 in the city of Londrina-PR, Brazil: a population-based survey.

Objective: To evaluate opportunity for vaccination in children born alive in Londrina, up to 6 months old and the relationship between socioeconomic stratum and vaccination regularity.

Method: Population survey study based on a retrospective cohort of children born in 2017 and 2018 that identified vaccines not administered in a given session. Vaccination regularity was compared between socioeconomic strata using Pearson's chi-square test.

Vaccination coverage in children up to 2 years old born in 2017 and 2018 in the municipalities of São Paulo and Campinas, Brazil: comparison of the results of a national survey and the National Immunization Program Information System.

Objective: To estimate and compare vaccination coverage among children born in 2017-2018 in São Paulo and Campinas, according to the Vaccination Coverage Survey (ICV 2020) and the National Immunization Program Information System (SI-PNI).

Methods: ICV 2020 analyzed vaccination card records. Coverage was calculated and compared to doses recorded on the SI-PNI, divided by the target population.

Factors associated with vaccination coverage in children up to 15 months old, born in 2017-2018 in the city of Natal/RN, Brazil: a population-based survey.

Objective: To estimate vaccination coverage and analyze factors associated with full vaccination among children up to 15 months old in the city of Natal-RN, Brazil.

Methods: Population-based survey with data recorded on children's vaccination cards and interviews conducted in 2020 and 2021. Analysis of factors associated with complete vaccination was performed by calculating prevalence ratios (PR) and 95% confidence intervals (95%CI) using Poisson regression.