About 42% of Americans are vitamin D deficient, and deficiency of vitamin D is associated with increased susceptibility to infection.
The US do not have the potential to be the epicenter, they are, together with Europe, currently the epicenter. We wait what will happen in Africa.
Because it has not committed to preventing people from mixing with one another when the first infections appear, the delay in imposing the necessary measures to prevent the virus from spreading leads to catastrophic results.
I think that is because of several factors:
Human travels, human behavior and activities, population density, age ratio, and also government response.
Azm Shaher Al-Homoud to date, The US authorities not taking serious procedures to prevent traveling among states, makes PCR test for every ill person, and close airports.
Because people dint stay at home and not adopt other physical distancing measures that are an important way to slow down the spread of the virus, but in my opinion they are only defensive measures.
There are so many factors influencing the development of the SARS-CoV-2 coronavirus epidemic (causing Covid-19 disease) in a given community (region, agglomeration, country, continent) that it is impossible to answer this question objectively in even a dozen or so sentences. The group of these factors includes, among others, social, medical, economic, behavioral, technological, communication and tourism factors, including, among others, dominant forms of work, reaction speed and effectiveness of public institutions of the crisis management system, preparation of the health care system for the event of an epidemic outbreak , the scale of tourism development, the scale of citizens' use of various public and commercial services requiring direct contact with other people, the scale of using remote communication via the Internet, living and sanitary standards, the scale of compliance by citizens with anti-pandemic and sanitary safety recommendations and many others .
Greetings,
Dariusz Prokopowicz
Lack of Social distancing, low immunity and Vitamin D are the solid reasons.
It's over now. USA can manage although several peaks but Latin America is the current epicenter.