Judging by the permanent nature of Plexiglas, Lexan, and acrylic screens being installed at cashier stands in supermarkets and retail and convenience stores, as well as at bank teller positions and in doctor, dentist, and veterinarian offices, Covid-19 is not disappearing, as alleged by Donald Trump, anytime soon. Epidemiologists and virologists are now warning that a second wave of the virus is now approaching.

Concern for the current Covid-19 first wave version 2.0 impact on rapidly re-opening regional economies was prompted by a model developed by the PolicyLab at Children’s Hospital of Philadelphia (CHOP) in cooperation with the University of Pennsylvania.

According to the new model, areas that have been rapidly re-opening businesses, certain schools, and other activities are also in danger of experiencing a lethal second wave with the arrival of colder weather this fall and winter. Areas currently experiencing new spikes from the tail end of the first wave include Dallas, Houston, Alabama, and south Florida. The CHOP model also indicates that in the absence of strict social distancing, warmer weather will have little impact on resurgent transmission of Covid-19, particularly in cities and metropolitan areas.

As shown with recent outbreaks at meat-packing plants, rural locations are not immune to Covid spikes, as witnessed by 570 cases in rural North Carolina that originated at a Tyson Foods poultry processing plant in Wilkesboro.

The first wave, including its recent spikes, has infected 5 million people globally. Two-thirds of the cases have been in the United States, Russia, Brazil, and India.

With a safe and reliable vaccine for Covid still a long way off by most professional outlooks, the second wave of Covid may be followed by third, fourth, and additional waves.

Dr. Andrea Ammon, the director of the European Center for Disease Prevention and Control, said that 85 to 90 per cent of the world population is still vulnerable to Covid-19. In an interview with The Guardian, Ammon said that Covid-19's adaptation to humans means that it will remain a threat for some time. She added, "I don’t want to draw a doomsday picture but I think we have to be realistic." Dr. Hans Kluge, the World Health Organization’s regional director for Europe, echoed Ammon's concerns, telling The Daily Telegraph that nations should prepare for a double wave, pointing out that after Covid seemed to have disappeared in China and South Korea, it reappeared in new clusters.

Although certain parts of the world are seeing a decrease in new virus cases, that is not the case in a number of countries, including Brazil, where 1,179 deaths in a single day represented the highest count yet; Russia, where there has been a severe outbreak in Dagestan; South Yemen, where civil war is interfering with providing care to the Covid-infected; and Lebanon, where there has been a new outbreak among Bangladeshi guest workers in Beirut's Ras al-Nabaa neighborhood.

Indian public health specialists are warning that if India, as expected, lifts its lockdown on May 30, the nation will experience a Covid-19 peak in mid-July.

The World Health Organization (WHO), which has come under attack by a far-right phalanx that includes Donald Trump, Mike Pompeo, Republican congressional and state officials, Falun Gong and its propaganda apparatuses (including The Epoch Times), the Taiwan Lobby, and the Unification Church and its propaganda outlets (including The Washington Times), is monitoring increased Covid spreading in Haiti; Cape Town, South Africa; Aden, South Yemen; the Navajo Nation in the U.S. Southwest; Oman; Jakarta and East Java, Indonesia; and the United Kingdom.