COVID-19 spreads through respiratory droplets produced when an infected person talks, coughs, or sneezes. These droplets can then enter the body of another person through their mouth, nose, or eyes.
COVID-19 infects a person when the virus enters their body through their respiratory system. The virus then attaches to cells in the respiratory tract and begins to replicate, leading to symptoms and potential complications.
COVID-19 is diagnosed through a combination of symptoms, history of exposure, and laboratory tests. Symptoms of COVID-19 include fever, cough, and difficulty breathing, while laboratory tests such as PCR or antigen tests can confirm the presence of the virus in a person's body.
The best way to protect yourself from COVID-19 is to follow basic hygiene practices such as washing your hands frequently, wearing a mask in public, and practicing social distancing. It is also important to avoid close contact with individuals who are sick and to stay home if you are feeling unwell.
While it is possible for COVID-19 to be transmitted through objects or surfaces, the main mode of transmission is through respiratory droplets. However, it is still important to practice good hygiene and regularly clean and disinfect frequently touched surfaces to reduce the risk of transmission.