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Corona Virus COVID-19 SARS-CoV SARS-CoV2 Novel corona virus COVID Corona

COVID-19; Stand for  coronavirus disease in 2019 . The name COVID-19 was given by  WHO  on February 11 2020 to the disease caused by the novel coronavirus SARS-CoV2. The name SARS-CoV2 was given to it because this virus is a genetic cousin of coronavirus which caused the SARS outbreak in 2002 (SARS-CoV)  [1]. What is coronavirus? Coronaviruses are common human and animal  single-strand RNA genome  viruses belonging to the  family coronaviridae  that was first, discover in the 1930S in domestic poultry. In animals,  coronavirus causes a range of respiratory, gastrointestinal, and neurologic diseases.  In human  coronaviruses are mainly seven types that cause a range of diseases. A) Four human  coronaviruses cause symptoms of the common cold namely; 229E, OC43, NL63, and HUK1. B) Three human  coronaviruses cause much more serious lung infections, also called pneumonia. SARS-CoV in 2002  (severe acute respiratory syndrom...
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lung cancer

Definition: The World Health Organization (WHO) defines lung cancer as tumors arising from the respiratory epithelium (bronchi, bronchioles, and alveoli). OR Lung cancer is a type of cancer caused by uncontrolled cell division of the respiratory epithelium (bronchi, bronchioles, and alveoli). Normal structure and function of the lungs: Lungs are 2 sponge, pyramid-like organs located in the chest. Each lung is divided into sections called lobes. The right lung has three lobes while the left lung has two lobes. The left lung is smaller than the right one because the heart on the left side takes up more room of the chest. When you inhale air through mouth and nose it enters into lungs through trachea (windpipe). The trachea divides into tubes called bronchi, which enter the lungs and divide into smaller branches called bronchioles. At the end of bronchioles there are small tiny sacs called alveoli. These alveoli absorb oxygen from the inhaled air into your b...
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A 36-year-old woman presents to her general practitioner (GP) complaining of spontaneous bruising mainly on her legs

history A 36-year-old woman presents to her general practitioner (GP) complaining of spontaneous bruising mainly on her legs. The bruising has been noticeable over the last 4–6 weeks. She cannot remember any episodes of trauma. In addition, her last two menstrual periods have been abnormally heavy, and she has suffered a major nosebleed. She otherwise feels well and is working full time as a secretary. There is no significant past medical history. She is married with one daughter aged 11 years. There is no family history of a bleeding disorder. She is a non-smoker and drinks a small amount of alcohol socially. Examination On examination, there are multiple areas of purpura on her legs and to a lesser extent on her abdomen and arms. The purpuric lesions vary in color from black–purple to yellow. There are no signs of anemia, but there are two bullae in the mouth and there is spontaneous bleeding from the gums. There are no retinal hemorrhages on funduscopy. Blood pressure is 118/7...
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