a vaccine for the coronavirus may not develop in humans, long-term immunity. This fear was expressed in an interview with The Straits Times, Minister of national development of Singapore Lawrence Wong.

He recalled that the development of a vaccine takes many countries and companies, on this task, including the work of Singapore authorities and expect a breakthrough in this field. However, the Minister added that the development and mass production of the drug may take a year or more — even in the most optimistic scenario.

in addition, Vaughn is warned of the likelihood that the vaccine will not be able to develop a person’s long-term immunity and coronavirus will become endemic. In this regard, the Minister urged to prepare for the long struggle with the virus.

According on 3 June, in the world more than 6.3 million are infected with coronavirus, of which over 380 thousand died, more than 2.7 million cured. The most affected from infection of the country — USA, Brazil, Russia, UK and Spain.

Outbreak of pneumonia COVID-19 caused by a new type of coronavirus, was first recorded in December 2019 in Wuhan. On 11 March, the who announced that the situation can be characterized as a pandemic.