Question

Why did the syndromic surveillance system fail to notice the presence of COVID-19 in the United States until January 2020, although it was likely present at the end of 2019?

Answer 1

Answer: The syndromic surveillance system fail to notice the presence of COVID-19 in the United States until January 2020, although it was likely present at the end of 2019 because according to four seperate surveillances, the suggestions contained that there would be transmission which will began in U S A in the late phase of january 2020. But in the year 2019, the incidence rate was too loo to be detected and could be declared as an emergency. The illness was thought to be Content and would not lead to increased or spread worldwide. So, the poor or the lack of incidence leads to inability to detect the pandemic.