Current Dermatology Reports最新文献

Purpose of review: SARS-CoV-2 has had a devastating global effect, with vaccinations being paramount in the public health strategy against COVID-19. Vaccinations have uncoupled infection from adverse COVID-19 outcomes worldwide. While immune-modifying therapies are effective for the management of skin diseases such as psoriasis and atopic dermatitis, these medications also impair protective immune responses. There has been longstanding uncertainty and concern over the impact of immune-modifying therapies on the effectiveness of vaccines; for example, it is well recognised that methotrexate impairs humoral responses to both influenza and pneumococcal vaccines. This narrative review aims to discuss the evidence to date on the impact of immune-modifying therapies on the immune response to COVID-19 vaccines, with a focus on the first two vaccine doses.

Recent findings: Individuals receiving immune-modifying therapy are more likely to have attenuated humoral responses to a single dose of COVID-19 vaccine compared to healthy controls; however, this may be improved by a complete course of vaccination. B cell targeted biologics such as rituximab markedly impair the humoral response to both the first and second COVID-19 vaccination. There remains a paucity of data on cellular immune responses, with the few available studies indicating lower responses to two vaccine doses in individuals receiving immune-modifying therapies compared to healthy controls, which may impact the durability of immune responses.

Summary: Inadequate humoral immune responses to a single dose of vaccine in the context of immune-modifying therapy are improved by a complete course of vaccination. Individuals receiving immune-modifying treatments should be encouraged to take up a complete vaccine course to mitigate their risk against COVID-19. Research in large patient populations on the longevity/kinetics of the complex humoral and cellular response to subsequent vaccine doses, including against newer variants of concern, is warranted, in addition to data on immune correlates of vaccine clinical effectiveness.

Purpose of review: Summarize the current evidence for teledermatology in rural, underserved, and isolated environments including its use during the current COVID-19 pandemic.

Recent findings: Teledermatology is a reliable and cost-effective tool that can reduce face-to-face visits and improve the timeliness of care for medically underserved populations. Recent studies have shown many additional benefits of teledermatology, including improving patients' health outcomes and increasing local providers' knowledge of dermatologic conditions. Despite these benefits, many low-income and rural populations lack access to digital technology and high-speed internet, limiting the reach of telemedical services.

Summary: Overall, barriers in access to care are unique across the globe, and thus teledermatology interventions should address and adapt to the needs of the local patient population. Certain strategies, such as implementing simple, SF models, using standardized TD consult templets, and providing real-time information technology support could potentially mitigate disparities and improve the effectiveness of TD programs in underserved areas.

Purpose of review: This review aims to evaluate the spectrum of cutaneous reactions after both SARS-CoV-2 infection and COVID-19 vaccination while simultaneously understanding the evolution of the field of dermatology in the face of an ongoing pandemic.

Recent findings: The most commonly reported cutaneous reactions after COVID-19 infection in the literature to date include morbilliform or maculopapular rashes, chilblains, and urticaria. The incidence of cutaneous reactions after COVID-19 vaccination was 9% in larger cohort studies and more commonly occurred after mRNA-based COVID-19 vaccines than adenovirus vector vaccines. The most frequently reported cutaneous reactions after COVID-19 vaccines were delayed large local reactions, local injection site reactions, urticarial eruptions, and morbilliform eruptions.

Summary: With the ongoing pandemic, and continued development of new COVID-19 variants and vaccines, the landscape of cutaneous reactions continues to rapidly evolve. Dermatologists have an important role in evaluating skin manifestations of the virus, as well as discussion and promoting COVID-19 vaccination for their patients.