In December 2019 a novel coronavirus emerged in Wuhan, China causing many cases of severe pneumonia. World Health Organization (WHO) named this disease Coronavirus Disease 2019 (COVID-19). The infection has rapidly spread across China to many other countries, and on March 12, 2020 the WHO declared pandemic outbreak of COVID-19. As of May 16, 2020, COVID-19 has been diagnosed in more than 4,490,000 patients, associated to 305,976 deaths worldwide; in Italy 224,760 COVID-19 cases have been reported with 31,763 deaths. The main routes of transmission are respiratory droplets and direct contact with infected people, so numerous prevention strategies are employed to mitigate the spread of disease, including social distancing and isolation. The aim of this narrative review is to underline gender differences in epidemiology, etiopathogenesis, risk factors, clinical presentation, diagnosis, prognosis and mortality of patients infected with SARS-CoV-2. Currently data on the sex indicators for admitted or deceased patients are only available, but there is no analysis about other gender indicators. The data considered in our study are the only currently available in the literature, but it is appropriate to implement a specific analysis with all gender indicators to identify appropriate strategies. Moreover, the evaluation of a health service efficiency is a key element to define gender outcomes. Knowing the gender differences in COVID-19 outbreak would be a fundamental tool to understand the effects of a health emergency on individuals and communities as well as to carry out effective and equitable policies, public health measures and targeted solutions.

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Parkinson’s disease has been found to significantly affect health-related quality of life. The gender differences of the health-related quality of life of subjects with Parkinson’s disease have been observed in a number of studies. These differences have been reported in terms of the age at onset, clinical manifestations, and response to therapy. In general, women with Parkinson’s disease showed more positive disease outcomes with regard to emotion processing, non-motor symptoms, and cognitive functions, although women report more Parkinson’s disease-related clinical manifestations. Female gender predicted poor physical functioning and socioemotional health-related quality of life, while male gender predicted the cognitive domain of health-related quality of life. Some studies reported gender differences in the association between health-related quality of life and non-motor symptoms. Depression and fatigue were the main causes of poorer health-related quality of life in women, even in the early stages of Parkinson’s disease. The aim of this review was to collect the best available evidence on gender differences in the development of Parkinson’s disease symptoms and health-related quality of life.

Vaccination is one of the greatest achievements of public health. Vaccination programs have contributed to the decline in mortality and morbidity of various infectious diseases. This review aims to investigate the impact of sex/gender on the vaccine acceptance, responses, and outcomes. The studies were identified by using PubMed, until 30th June 2020. The search was performed by using the following keywords: SARS-CoV-2, COVID-19, gender, sex, vaccine, adverse reaction. Clinical trials, retrospective and prospective studies were included. Studies written in languages other than English were excluded. Studies were included if gender differences in response to vaccination trials were reported. All selected studies were qualitatively analyzed. Innate recognition and response to viruses, as well as, adaptive immune responses during viral infections, differ between females and males. Unfortunately, a majority of vaccine trials have focused on healthy people, with ages between 18 to 65 years, excluding the elderly, pregnant women, post-menopausal female and children. In conclusion, it is apparent that the design of vaccines and vaccine strategies should be sex-specific, to reduce adverse reactions in females and increase immunogenicity in males. It should be mandatory to examine sex-related variables in pre-clinical and clinical vaccine trials, such as their crucial role for successful prevention of pandemic COVID-19.

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