With billions of people in the world who have not been vaccinated, Covid-19 is difficult to end in the next 6 months, even more burst in winter.

About 5.76 billion doses of vaccines were injected globally, with 42.3% of the world's population was injected at least one dose.

While the vaccination rate in rich countries is over 60%, less than 1.9% of people in low-income countries are injected at least one nose, according to our World in Data.

Experts agree that vaccination is the key to human pandemic response.

Without vaccination, we will become very vulnerable because the virus will spread widely and infect most people in the fall and crowded, Lone Simonsen, epidemiologist and professor of medical science

Many experts share their views that almost everyone will have to get vaccinated or infected, or both, before the pandemic ends.

I think the outbreaks will continue to happen all over the world, Michael Osterholm, Director of the Policy Center and Infectious Planning Center at Minnesota University in Minneapolis, and the Advisor of US President Joe Biden

Outbreaks outbreaks will make the school to close.

A vaccination point in Los Angeles, California in March. Photo: Reuters

When children return to schools in the fall and people often tend to gather in a closed space in the winter, the world can record new outbreaks at schools, public transport or workplaces

Even if the vaccination rate increases, a part of the people is still vulnerable to Covid-19, such as babies, who cannot be vaccinated and the infected person after injection due to immunodeficiency.

We will see the epidemics flare up and down to at least in the next few years, when the vaccine is deployed more, Osterholm said.

The year of influenza pandemic was recorded in the past 130 years, which could show clues about the way Covid-19, according to Simonsen.

This epidemiologist said that although the longest global flu epidemic lasts 5 years, they mainly focus on 2-4 outbreaks in an average of 2-3 years.

Since the outbreak in Wuhan at the end of 2019, Covid-19 made more than 4.6 million people died, more than twice the number of deaths in any outbreak since the Spanish flu in 1918

Although it has experienced serious outbreaks last year and has a relatively high vaccination rate, countries such as the US, Britain, Israel and Russia continue to record the recent new cases.

Many countries with lower vaccination rates, such as Malaysia, Mexico, Iran and Australia are witnessing the most serious outbreaks, due to the appearance of the easy-to-contagious Delta transformation.

History shows the concept that the virus will gradually disappear over time is completely wrong, according to Simonsen.

Therefore, experts believe that people will need a regular vaccine to maintain preservation against Covid-19.

A woman scaned QR code before entering the shopping center in Singapore in May. Photo: Reuters.

Erica Charters, Associate Professor of Medical History At Oxford University, said the pandemic will end at different times in different areas.

However, the approach of countries is now very different.

The Covid-19 process ends will not be homogeneous.

Experts identify whether the approach of different countries, the consequences of the pandemic will continue in the coming years.

We must approach it by watching carefully and modest attitude, Osterholm said.