نتایج جستجو برای: covid 19 coronavirus
تعداد نتایج: 470511 فیلتر نتایج به سال:
The Coronavirus disease 2019 (COVID-19) was identified in late 2019 and has gradually spread to all countries. Following the outspread of this virus as a community-acquired disease, many researchers have been trying to identify various factors involved in the transmission of the virus, as well as the ways to prevent its transmission from person to person. For example, researchers have found tha...
The ongoing outbreak of COVID-19 that began in Wuhan, China, has constituted a Public Health Emergency of International Concern, and spread all over the world. In a phylogenetic network analysis of human severe acute respiratory syndrome coronavirus 2 (SARS-Cov-2) genomes, three central variants were distinguished by amino acid changes, which named A, B, and C; with A being the ancestral type a...
Background: COVID-19, novel coronavirus, has been identified by the World Health Organization as a pandemic that causes highly transmittable respiratory disease. Lack of awareness about COVID-19 preventive measures represents a global threat. The aim of the current study was to evaluate the effect of nursing instructions about COVID-19 p...
Background: Coronavirus Disease 2019 (COVID-19) recently created a pandemic with high mortality. People with underlying diseases are prone to severe infection. The nature of NMOSD disease and its treatment by immunosuppressants predisposes patients to infection. Objectives: This study aimed to evaluate the effect of the COVID-19 pandemic on the clinical course of NMOSD and the characteristi...
Background: No proven effective treatment for coronavirus disease (COVID-19) currently exist. Different drugs have different effects on patients with Covid-19, and the potential benefits or harms of the proposed drugs for the treatment of this disease need to be discussed more fully. The aim of this study was to systematically review the effectiveness of the proposed drugs in the treatment of p...
SARS-CoV-2 is a member of the coronaviruses family that causes the outbreak of coronavirus disease 2019 (COVID-19) in China in late 2019 which has exploded to a global pandemic. The reference genome of the SARS-CoV-2 is considered to be very closely related to SARS-CoV and the virus uses the ACE-2 receptor for cellular entry similar to SARS-CoV. The most common symptoms of COVID-19 are fever, c...
The novel coronavirus, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has introduced as causative agent for coronavirus disease 2019 (COVID-19) since the 2019 December. Human coronaviruses are classified in Nidovirales order and Coronavirdiae family. This family includes four genera. The SARS-CoV-2 is a member of Betacoronavirus genera and Sarbecovirus linage (linage B). There is ...
Background and Aims: In 2019, a novel coronavirus called SARS-COV-2 spread throughout the world, causing a pandemic a few months later. As the virus is not well-known and highly contagious, it is important to observe patients for all possible symptoms and comorbidities. This study aimed to demonstrate some demographic, clinical, and paraclinical features of the deceased patients with COVID-19 i...
Background & Aims: The emerging diseases such as coronavirus disease 2019 (COVID-19) can cause a serious stress, fear, and anxiety in the elderly. This study aims to determine the perceived stress and fear of COVID-19 in the elderly referred to comprehensive health centers in Tehran, Iran. Materials & Methods: In this descriptive cross-sectional study, 260 older people aged >60 years referred ...
Introduction: The new coronavirus, known as severe coronavirus syndrome (SARS-CoV2), is a viral pneumonia caused by an emerging virus that causes Coronavirus Disease 2019 (COVID-19) (1). The etiology and pathology of the disease are not known exactly, but it has been reported to enter host cells by the angiotensin-converting enzyme (ACE2). (2) The range of clinical symptoms of the disease var...
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