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ABOUT COVID-19 |
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COVID-19Coronaviruses (CoV) are a large family of viruses that cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome (MERS-CoV) and Severe Acute Respiratory Syndrome (SARS-CoV). A novel coronavirus (nCoV) is a new strain that has not been previously identified in humans. |
HOW IT HAPPEN?A person can be infected when aerosols or droplets containing the virus are inhaled or come directly into contact with the eyes, nose, or mouth.The virus can also spread in poorly ventilated and/or crowded indoor settings, where people tend to spend longer periods of time |
ABOUT VACCINE COVID-19 |
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VACCINE OF COVID-19Vaccine intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 (COVID‑19). Prior to the COVID‑19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS). |
HOW VACCINES WORKS?Vaccines train a person’s immune system to recognise and clear out germs (bacteria and viruses) that can cause serious illness. They strengthen your immune system by training it to recognise and fight against specific germs.Vaccines contain either killed or weakened versions of the virus that causes the disease or a small part of it, such as a protein or nucleic acid. When you get a vaccine, your immune system recognises these as foreign. It responds by creating memory cells and antibodies that protect you against future infection. |
mRNA Vacccine |
AstraZeneca |
Sinovac |
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mRNA vaccines are a new type of vaccine to protect against infectious diseases. mRNA vaccines teach our cells how to make a protein—or even just a piece of a protein—that triggers an immune response inside our bodies.The benefit of mRNA vaccines, like all vaccines, is those vaccinated gain protection without ever having to risk the serious consequences of getting sick with COVID-19. |
The AstraZeneca COVID-19 vaccine, now called Vaxzevria, is a viral vector vaccine, just like the vaccine from Johnson & Johnson.The vaccine uses a chimpanzee adenovirus to carry spike proteins from the coronavirus into your body to create an immune response. It can be produced on a large scale and inexpensively, which is crucial during a pandemic. It can also be kept in a regular refrigerator, unlike the vaccines from Pfizer and Moderna. |
CoronaVac is an inactivated vaccine. It uses a dead version of the SARS-CoV-2 virus so that it cannot replicate, but it keeps the surface spike protein intact to trigger the body’s immune system to create antibodies for protection against the live virus, if it were to invade. CoronaVac is a COVID-19 vaccine produced by Sinovac Biotech, a China-based pharmaceutical company with headquarters in Beijing. The company focuses specifically on the development and manufacturing of vaccines to target human infectious diseases. |
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