write a note on the geographical spread of Covid 19?
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Answer:
Accordingly, the World Health Organization (WHO) has named the disease caused by SARS-CoV-2 as COVID-19.[1] The first people affected have been examined further to find the source of the infection. The findings had indicated that they were linked to seafood and the livestock market, so that initially only animal-to-human transmission of the virus was proposed and disease prevention was limited to this level.
Over time, we have seen an increasing trend in the number of patients, not only in China but also in the continents of Europe and the United States. In addition to animal-to-human transmission of the COVID-19 virus, human-to-human transmission has been also revealed.[2] Given the rapid spread of COVID-19 in the world and the potential pandemic risk of virus, we aimed to provide a letter for reviewing the epidemiology of COVID-19 based on the coronavirus update publication image in the world and in Iran.