Question

what is the nature and causes of covid 19?​

Answer 1

Answer:

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly transmissible and pathogenic coronavirus that emerged in late 2019 and has caused a pandemic of acute respiratory disease, named 'coronavirus disease 2019' (COVID-19), which threatens human health and public safety.

Answer 2

causes of covid 29

difficulty in breathing