Coronavirus ppt. Coronavirus statistics and information

Free Coronavirus PowerPoint Templates

Coronavirus ppt

The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Thank You for Visiting Our Website You are exiting the Department of Labor's Web server. Introduction Coronaviruses are found in avian and mammalian species. About one in five colds is due to coronaviruses. Direct hybridization and polymerase chain reaction tests for viral nucleic acid have been developed and, particularly with the latter, are the most sensitive assays currently available for detecting virus. Infected people may not be sure how or where they became infected. The envelope glycoproteins are responsible for attachment to the host cell and also carry the main antigenic epitopes, particularly the epitopes recognized by neutralizing antibodies.

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Free Coronavirus PowerPoint Template

Coronavirus ppt

Please click the button below to continue. Users must request such authorization from the sponsor of the linked Web site. Structure Coronavirus virions are spherical to pleomorphic enveloped particles. Waves of infection pass through communities during the winter months, and often cause small outbreaks in families, schools, etc. Classification and Antigenic Types The coronaviruses were originally grouped into the family Coronaviridae on the basis of the crown or halo-like appearance given by the glycoprotein-studded envelope on electron microscopy.

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Coronavirus statistics and information

Coronavirus ppt

Many workers, even those who do not encounter infectious people in the course of their job duties, can have similar exposure risks as the in a pandemic. Diagnosis Colds caused by coronaviruses cannot be distinguished clinically from other colds in any one individual. The envelope glycoproteins are responsible for attachment to the host cell and also carry the main antigenic epitopes, particularly the epitopes recognized by neutralizing antibodies. Laboratory diagnosis may be made on the basis of antibody titers in paired sera. Cell-mediated immunity and allergy have been little studied, but may play a role. These responses in turn stimulate sneezing, obstruct the airway, and raise the temperature of the mucosa.

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Free Coronavirus PowerPoint Templates

Coronavirus ppt

Immunity does not persist, and subjects may be re-infected, sometimes within a year. The free bacteria template is a PowerPoint design prepared for infectious diseases presentation. You can use the free Coronavirus PowerPoint background to make presentations on How to Prepare for Coronavirus: masks, washing hands, or how to disinfect your stuff, especially when traveling and using the aircraft trays or public transportation. The disease resolves in a few days, during which virus is shed in nasal secretions. Immunity does not persist, and subjects may be re-infected, sometimes within a year. The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. Currently, there is an effort to better understand disease transmissibility, infectivity, and severity associated with this pandemic.

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Free Coronavirus PowerPoint Template

Coronavirus ppt

Thank you for visiting our site. The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. Pathogenesis Studies in both organ cultures and human volunteers show that coronaviruses are extremely fastidious and grow only in differentiated respiratory epithelial cells. There is some evidence that the respiratory coronaviruses can cause disease of the lower airways but it is unlikely that this is due to direct invasion. Cell damage triggers the production of inflammatory mediators, which increase nasal secretion and cause local inflammation and swelling.

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Free Coronavirus PowerPoint Template

Coronavirus ppt

These droplets are believed to enter the mouths and noses of people nearby, and can be inhaled into the nose and lungs. This is referred to as community or local transmission, and means that people in certain areas are being infected with the virus and transmission cannot be traced to a single infected person. Please click the button below to continue. Epidemiology The epidemiology of coronavirus colds has been little studied. Host Defenses Although mucociliary activity is designed to clear the airways of particulate material, coronaviruses can successfully infect the superficial cells of the ciliated epithelium. .

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