return icon Vietnamnet.vn

Herd immunity yet to be achieved despite wide COVID-19 vaccine coverage

Due to the current developments relating to the COVID-19 pandemic it remains difficult to confirm whether or not the country has achieved herd immunity amid the possible appearance of fresh variants that can render vaccines ineffective.

This assessment was made by Associate Professor Dr Tran Dac Phu, senior advisor at the Public Health Emergency Operations Center under the Health Ministry, during his recent talks with a VOV reporter.

A very high vaccination rate does not mean that herd immunity has been achieved, whilst not being vaccinated does not necessarily mean someone is infectious, according to him.

“There have appeared new strains of the SARS-CoV-2 virus in the world, such as XE, which is a hybrid between BA.1 and BA.2 variants of Omircon or Deltacron hybrid between Delta and Omicron. Most of these strains spread about 10-20% faster than the old ones.

However, it is necessary to see how quickly the new variants spread and whether they cause severe symptoms and nullify current vaccines or not,” Dr Phu said.

All of these factors can contribute to overwhelm the health care system, leading to a high rate of severe patients, especially in the event that the number of deaths is uncontrollable, he continued.

Associate Professor Dr Tran Dac Phu, senior advisor at the Public Health Emergency Operations Center under the Health Ministry

Associate Professor Dr Tran Dac Phu, senior advisor at the Public Health Emergency Operations Center under the Health Ministry

Experiencing four pandemic waves, the country has to date gained plenty of experience in improving its ability to prevent and control the spread of the pandemic. Experts therefore recommend that the nation monitor pandemic developments globally, whilst closely following recommendations set by the World Health Organization (WHO) in order to have an accurate assessment and timely response to the pandemic.

The SARS-CoV-2 virus that causes the COVID-19 pandemic can be viewed as being very different from many other disease-causing viruses. In particular, immunity in people who have already been infected with COVID-19 will decrease after several months, whilst simultaneously there is still a risk of re-infection.

For vaccinated people, their immunity is reduced over time and they can still contract the disease, becoming a source of infection for others. This is different from other vaccines such as the measles vaccine or Japanese encephalitis vaccine as once vaccinated there will be complete immunity, Dr Phu analyzed.

Therefore, it can be difficult to discuss the concept of herd immunity in the context of the current COVID-19 pandemic. However, if vaccines with high and sustainable prevention effectiveness are available in the future, we will be able to control the pandemic with vaccines, just like how we had eradicated polio. In any case, a new variant appears and leaves current vaccines ineffective, it would be even more impossible to talk about herd immunity,” said Phu.

He also gave advice to citizens, according to which, personal preventive measures are hugely important in protecting themselves, their families, and the wider community.

The nation’s current effective control of the COVID-19 pandemic has so far proved the health capacity and anti-pandemic capacity of administrations at all levels, with both ministries and people seeing further improvements.

With its strategy on "living safely with the pandemic", the country has adapted to flexible COVID-19 prevention and control measures in a bid to ensure economic activities and social security go smoothly.

Source: VOV

MORE NEWS

Foreign movies generate more revenue than locally produced films

After one week of release, the film ‘Suddenly Winning the Lottery’ earned VND 71 billion and remained firmly at No. 1 on the box office revenue chart. The film is one of the foreign films generating more revenue than locally produced films.

Ministry to keep coal-fired thermal power projects

To avoid legal risks, thermal power projects in the 8th national power development plan need to be retained, especially BOT (build, operate, transfer) projects, which involve foreign investors, the Ministry of Industry and Trade (MOIT) said.

EVFTA advantages threatened by tough competition

Although Vietnam is hoping for stunning growth in seafood exports, particularly in the likes of basa fish and shrimp, the nation’s share in the EU market and utilisation of its trade deal with the bloc remain under some pressures.

Vietnam wastes 160 tons of agricultural by-products a year

If 1 million by-products in the seafood industry were processed into valuable products, they would bring in US$4-5 billion. Vietnam produces 160 million tons of by-products a year.

Vietnam records high digital banking growth

Vietnam is one of the countries with the highest growth rates in digital banking though it is still a developing economy, according to international organizations.

Shopee empire is being shaken up

Aspiring to become a super app, Shopee is facing challenges, including in the Vietnamese market.

Corporate bond market reform adds safety net for investors

The fresh and stringent legislative framework for the corporate bond market is slated to pave the way for a better debt sector in Vietnam, while the interests of issuers and investors could be safeguarded.

Call of the past

The past artisans might have not imagined that the vases they made would become special cultural values, which are being hunted and those prices paid equal many years of hard work.

Young Khmer-Vietnamese woman earns high profits from flower "massage"

In the first half of the year, Chal Thy could not succeed but finally was able to learn how to pat and massage flowers so that sweet nectar would be secreted.

Nam Dinh museum preserves traditional rural way of life

The Rural Museum, located in the tranquil village of Binh Di in Giao Thien Commune, Giao Thuy District, is about 110km from Hanoi.

M&A in Vietnam forecast to slow down in H2 2022

M&A activities in Vietnam is forecast to slow in the second half as investors become more conservative about several macro trends impacting the country’s economy.

Vietnam, Cuba strive to lift two-way trade to US$500 million in next five years

The Vietnam-Cuba business promotion forum took place in Hanoi on September 30, seeing the participation of visiting Cuban Prime Minister Manuel Marrero Cruz and Vietnamese Deputy Prime Minister Le Minh Khai.

Vietnam defeat Saudi Arabia, top Group D at AFC Futsal Asian Cup

Vietnam beat Saudi Arabia 3-1 at the AFC Futsal Asian Cup 2022 in Kuwait on September 30, thereby topping Group D and having a high chance of securing a berth in the quarter-finals.

EuroCham Chairman praises strong and forward-looking government

Vietnam’s recovery has been ensured by strong and forward-looking government support which helped to bring in more high-profile FDI projects

Many firms suspend raising capital from stock market

Many enterprises have either stopped mobilizing capital or changed their capital-raising plans on the stock market amid existing uncertainties and disadvantages.
back_to_top