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COVID 19

Study shows Omicron milder than Covid’s Delta version – latest updates

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Covid-19 has infected more than 277M people and killed over 5.3M worldwide. Here are some of the latest coronavirus-related developments:

British data indicates lower hospitalisation rate for Omicron

Two studies from Britain have shown that Covid infections with Omicron are less likely to result in hospitalisation compared to the Delta variant, the latest research confirming a trend first identified in South Africa.

The preliminary studies –– one paper from Scotland and the other from England –– were cautiously welcomed by experts, who nonetheless stressed that any advantage in milder outcomes could still be negated by the new strain’s heightened infectiousness, which may still lead to more overall severe cases.

“We’re saying that this is qualified good news –– qualified because these are early observations, they are statistically significant, and we are showing a reduced risk of hospitalizations,” Jim McMenamin, a co-author of the Scottish research, told reporters on a call.

The Scottish paper examined Covid cases recorded in November and December and grouped them by cases caused by Delta against those caused by Omicron.

Australia reports major spike in Covid cases

Australia has reported a major spike in coronavirus infections, a day after Prime Minister Scott Morrison rejected lockdowns or mask mandates to slow the spread of the Omicron variant.

The most populous state, New South Wales, recorded 5,715 new cases, up from 3,763 and almost as many as were recorded across all of Australia on Wednesday.

New South Wales also reported one death.

There were 347 people in New South Wales hospitals, up from 302 the previous day, and 45 in intensive care units, up from 40. Victoria state also saw a sharp increase, reporting 2,005 new infections on Thursday and 10 deaths.

US court to take up Biden vaccine mandate cases

The US Supreme Court has agreed to take up disputes over the Biden administration’s nationwide vaccine-or-testing Covid-19 mandate for large businesses and a separate vaccine requirement for healthcare workers.

The brief court order said the court will hear oral arguments on Jan. 7 in the two cases, with rulings likely to follow in short order.

An appeals court on Friday allowed the workplace mandate, which covers 80 million American workers, to go into effect, prompting businesses, states and other groups challenging the policy to ask the Supreme Court to block it.

The other case concerns whether the administration can require healthcare workers at facilities that treat federally funded Medicare and Medicaid patients to receive shots while litigation continues.

Venezuela reports seven more cases

Venezuelan President Nicolas Maduro has said that seven cases of the Omicron variant of the coronavirus have been detected in the South American country.

All the cases occurred in people who had travelled from other countries, including Panama, Dominican Republic, Spain, and Turkey, and got positive test results at the airport, Maduro said on state television.

Maduro added his government wants to vaccinate 90 percent of the Venezuelan population by the end of the year and to begin giving out booster shots in the first week of January.

US authorises Pfizer Covid pills

The United States has authorized Pfizer’s anti-Covid pill for high-risk people aged 12 and up, as a surge of cases driven by the highly infectious Omicron variant threatened holiday plans and Americans struggled to find tests.

Paxlovid, which comprises two types of tablets, was granted an emergency use authorization by the Food and Drug Administration after it was shown in a clinical trial to reduce the risk of hospitalizations and deaths among at-risk people by 88 percent.

The US has spent $5.3 billion procuring 10 million courses of the treatment, with the first 265,000 to be delivered in January 2022, and the rest by late summer, White House Covid coordinator Jeff Zients told reporters on a call.

Source: TRTWorld and agencies

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COVID 19

Japan provides USD 8.6 million through IOM Sri Lanka and Maldives

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The International Organization for Migration (IOM), in partnership with relevant ministries of the Government of Sri Lanka (GoSL) and the Government of Maldives (GoM) launched a regional project ‘Strengthening Capacity of Border Control for Responding to Infectious Diseases in Southwest Asia’ on 17 October 2022.

With a fund of USD 8.6 million, provided by the Government of Japan (GoJ), the project intends to strengthen overall border management capacities in Sri Lanka and the Republic of the Maldives to prevent the spread of infectious diseases that would otherwise impede the revitalization of human mobility.

The dramatic reduction in human mobility has been one of the most significant effects of the COVID-19 pandemic. This had major economic and social impacts in Sri Lanka and the Maldives, which are heavily reliant upon income from international tourism, labour migration and business travel. The border closures and associated restrictions disrupted regular trade exchanges and impacted migration flows, as well as exposed border management agencies and cross-border communities to higher risks of infection.

Speaking on the timeliness of the project, H.E. MIZUKOSHI Hideaki, Ambassador of Japan to Sri Lanka said that “as Sri Lanka has been actively attracting international tourists and expects to see an increase in the number of tourists in the future, strengthening border control capacity to prevent outbreaks of infectious diseases and ensure the safety of staff and travellers is a very meaningful initiative that will contribute significantly to economic recovery from the current economic crisis and further economic growth in Sri Lanka, where tourism is one of the main industries.”

The component of the project focusing on Sri Lanka will improve safety and security, and support process efficiency at primary points of entry (PoEs) to ensure more effective preparedness and proactive response to potential public health emergencies due to infectious disease outbreaks.

Designed to enable secure and safe operations at PoEs to augur international travel, boost traveller confidence and prompt a return to pre-pandemic levels of cross-border mobility, the project will address gaps in passenger processing and health screening systems at PoEs through a combination of new technology, infrastructure, procedures, training, and renovation works. This will streamline the management of traveller information, reduce waiting times, implement contactless processes and procedures by border control personnel. The project will also institute infection prevention measures and emergency response modalities and guarantee the safe disposal of potentially hazardous medical waste at PoEs, resulting in a safe environment for staff, travellers and crew while reducing harmful environmental and health impacts. Travellers and other personnel working at the PoEs will be the main beneficiaries of this initiative, aside from the airport and seaport workers and officials.

“Designed on the lessons learnt from the COVID-19 pandemic, this project is anchored to IOM’s strategy on Migration and Sustainable Development and will support Sri Lanka and the Maldives to respond to future disease outbreaks and health threats,” said Sarat Dash, Chief of Mission to IOM Sri Lanka and the Maldives. He added, “IOM will work closely with its host government partners to harness the development benefits of migration while ensuring a hassle-free and dignified process for international travellers, including the migrant population.”

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COVID 19

Could Omicron BA.2.75 sub-variant lead to a new global COVID-19 wave?

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A new sub-lineage of the Omicron variant known as BA.2.75, which was first detected in India, has raised concerns among health experts, Indian media reported.

BA.2.75, which is said to be a second generation sub-variant of Omicron BA.2, has an 18 percent growth advantage over other Omicron sub-variants currently circulating in India, The Indian Express reported.

Sub-lineages of Omicron have been the dominant strains circulating across the globe, with new mutations continuously evolving.

BA.2.75 could be behind recent COVID-19 surge in India

BA.2.75 has been detected in about 10 states in India, which has been witnessing a surge in new infections in the last month or so, according to Indian media.

In the last 10 days, the number of new cases in the country has been hovering in the 15,000-19,000 range, while the number in the past few months stayed below 3,000.

Dr. Rajesh Karyakarte, a microbiologist at Pune’s B J Medical College and head of Maharashtra’s genome sequencing effort, and scientists elsewhere in India, have picked up three sub-variants, BA.2.74, BA.2.75, and BA.2.76, as the possible drivers for the current surge, according to The Indian Express.

The three sub-variants have more than nine changes in the spike protein, and are expected to outnumber the BA.4 and BA.5 sub-variants, which were the most common until a few weeks ago, according to Karyakarte’s team.

Besides India, the strain has also been reported by several other countries, including Japan, Germany, the UK, Canada, the U.S., Australia and New Zealand, according to data from Nextstrain, an open-source platform of global pathogen genome data.

Does it cause more severe disease?

So far, there is no evidence to suggest that the BA.2.75 leads to a more severe form of infection, although scientists are at a very early stage to know about it.

Evidence on its transmissibility and immune evasiveness is also still preliminary and emerging, according to a statement from New Zealand’s Ministry of Health on Tuesday.

Why are health experts concerned?

While there is not much known about the new strain, health experts have raised concerns about it.

In a series of tweets, Dr. Shay Fleishon from the Central Virology Laboratory at Sheba Medical Center in Israel, said the sub-variant may be “alarming because it may imply a trend to come.”

He explained that in recent months, there has been a trend of second-generation variants based on Omicron sub-lineages BA.1, BA.2, BA.3, BA.4, and BA.5.

He said until now the second-generation variants have only been found in a few cases within one region. But BA.2.75 has spread to multiple regions, the first of its kind to do so.

The BA.2.75 variant has new mutations in the spike protein, of which G446S and R493Q are of particular concern, as they give the variant the ability to evade several antibodies, dnaindia.com reported, citing unnamed experts.

This means it can infect people who have been vaccinated, or have been infected previously, the report said.

Research reveals that the R493Q mutation increases the strain’s ability to attach to ACE2, the protein that the COVID-19 virus uses to enter cells, according to the report.

Source: CGTN

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Chinese experts caution against over-disinfection for COVID-19

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Chinese health experts have cautioned against inappropriate disinfection practices to curb the spread of COVID-19, and called for minimizing the impact on people’s regular life when conducting necessary disinfection.

“We should avoid blind or excessive disinfection, and make it targeted. Disinfection is only necessary when the virus transmission can be cut off this way,” said Zhang Liubo, chief disinfection specialist of the Chinese Center for Disease Control and Prevention (CDC), at a press conference on Friday afternoon.

“If we have multiple methods to block the spread of the virus, we can choose the safest, most effective, economical and convenient one. Disinfection is one of the available options,” he added.

For example, items not touched by the infected people in their homes can be sealed off and left unattended for a period of time, instead of getting disinfectant sprayed on them, according to Zhang.

During the battle against the latest Omicron wave in China, there have been media reports and online complaints about some questionable disinfecting approaches, such as workers in protective gear spraying disinfectant all over someone’s home.

Is indoor disinfection necessary?

In accordance with China’s Law on the Prevention and Control of Infectious Diseases, places and items contaminated by infectious disease pathogens should be strictly disinfected, said Lei Zhenglong, deputy head of the Bureau of Disease Prevention and Control at the National Health Commission.

Disinfection of places that may have been contaminated by the coronavirus, such as the living areas of the infected people, has played an important role in ensuring the safety of the environment, he said.

Zhang further explained that after the infected people were relocated to other places, there might still be living virus on the objects or in the environment that have been contaminated, which need to be sanitized.

Sometimes it’s difficult to determine whether there still exist living virus in the contaminated environment, because how long the virus can survive on the surfaces of objects is associated with a lot of factors, including the characteristics of the virus, the viral load, the temperature, humidity and the intensity of sunlight in the environment, he said.

Previous studies have shown that the novel coronavirus can live for two to three days on environmental surfaces, and even up to 28 days under certain conditions.

It is also possible that people can get COVID-19 by touching surfaces contaminated with the virus, both Chinese and foreign health authorities like the U.S. CDC have said.

Terminal disinfection of the contaminated places can ensure that the environment and the objects are free of living virus. Therefore, indoor disinfection of infected people’s homes is one of the effective measures to prevent against the virus transmission among family members.

Safe and effective disinfection stressed

Although proper disinfection of the contaminated environment is necessary, Lei pointed out that there have been problems in the disinfection practices in some places, like inadequate communication with the affected residents and improper operations.

It’s necessary to strengthen the training of proper disinfection procedures, as well as the supervision of the disinfection process, he said.

When organizing indoor disinfection of someone’s home, local health authorities should strictly follow relative technical specifications and procedures, and keep the residents informed about the whole process, so that they can understand and support the disinfection work, he added.

People should choose safe and effective disinfectants and disinfecting methods, Zhang said, adding that different methods should be adopted for different items and materials.

They should also protect the valuables and minimize the damage to the objects inside some’s home when conducting the disinfection work, he noted.

 

Source: CGTN

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