&lt;strong&gt;Factors Affecting SARS-CoV-2 (COVID-19) Pandemic, including Zoonotic, Human Transmission and Chain of Infection&lt;/strong&gt;&lt;strong&gt;. Reducing Public Health Risk by Serum Antibody Testing, Avoiding Screening in Unhygienic Places and False PCR Reporting. A Scientific Review&lt;/strong&gt;