Deadly outbreak of covid-19: corona virus, migration, global pandemic, some treatments and precautions

Corona viruses (CoVs) is an enveloped single-stranded RNA virus belonging to the family Coronaviridae that have various types of strain such as SARS-CoV, MERS-CoV, nCoV. After an outbreak of pandemic corona virus (COVID-19) from the Central Chinese city of Wuhan, WHO has been declared a global health emergency in whole world. Now it become a very serious problem even developed countries are worsely affected and because of this pandemic situation above 200 countries are affected and more than 204,987 people are died in the worldwide. Even in this modern era where we have enough resources but still we are facing many problems with lot of diseases. Scientists and doctors are not getting any medicines against this pandemic. Nobody knows how much time it will take to completely cure to all affected people. This has become a biggest threat to humanity in 2020.