Question

what are the different strains of covid-19 ​

Answer 1

Answer:

cough, sneezing

Explanation:

Mark me as brainliest

Answer 2

• Coronaviruses have been around for a while. They're a huge viral family with a lengthy history.
• Many of them can induce a range of ailments, ranging from a simple cough to serious respiratory problems.
• COVID-19 is caused by a new (or "novel") coronavirus, one of numerous that have been found in humans.
• Animals have most likely had it for a long time. Viruses from animals can occasionally infect humans.
• Scientists believe this is what occurred in this case. So, while this virus isn't new to the rest of the planet, it is novel to humans.
• It was dubbed a new coronavirus by scientists when they discovered it was making people ill in 2019.
• SARS-CoV-2 is the name given by experts to these strains.