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COVID-19: South African variant of SARS-CoV-2 virus in 31 countries

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The South African variant of SARS-CoV-2, the virus that causes Covid-19, is now spreading to 31 countries worldwide, following the infection of three additional territories, or 8 more countries. More contagious than the original form of the virus, the South African variant is of great concern.

The South African variant of SARS-CoV-2 continues to spread. According to the World Health Organization (WHO) weekly epidemiological review, published on Wednesday 27 January, it is now present in 31 countries and territories, or in 8 more countries. Results that raise concerns about the increased rates of reinfection of the novel coronavirus.

According to the WHO, recent laboratory studies on a limited number of patients have shown that the South African variant of the virus is less susceptible to antibody neutralization. Although further studies are underway to better interpret the efficacy of vaccines against this variant, “preliminary data using serums from people vaccinated with Moderna serum showed a reduction in neutralizing antibody titers of variant 501Y.V2 compared to previous variants tested.” The WHO points out, however, that these are preliminary findings that require further research, including more samples and an assessment of neutralization changes on clinical efficacy.


Moderna announced on Monday, January 25, that it is working, as a precaution, on a new form of its Covid-19 vaccine to combat the Sars-CoV-2 variant that appeared in South Africa. Laboratory tests show, according to the company, that the vaccine developed by the American start-up works against this South African variant and against the one detected for the first time in the United Kingdom. But like Pfizer-BioNTech, this product is slightly less effective against variant detected in South Africa

As a result, the company is exploring two options to boost the effectiveness of its vaccine. While vaccination is currently done in two doses, it will conduct trials to see “whether adding a booster dose of its original vaccine can enhance antibody levels against emerging variants”. It is also developing “a new version of the vaccine that specifically targets mutations in the South African variant and will test whether, given as a booster injection, this dose induces a better immune response”.

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HEALTH

COVID 19 – A new variant we discovered

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According to a senior official at the World Health Organization, a new highly mutated variant of COVID called BA.2.86 has been discovered in several countries including Switzerland, South Africa, as well as Israel, Denmark, the United States and the United Kingdom.

According to “Reuters”, the variant was first spotted in Denmark on 24 July after sequencing of the virus infecting a patient at risk of becoming seriously ill”. And so it was detected “in other symptomatic patients, during routine checks at airports and in wastewater samples in a handful of countries”.

Thus, scientists have indicated that “although it was important to monitor BA.2.86, it was unlikely to cause a devastating wave of serious illness and death given the immune defenses developed worldwide as a result of vaccination and previous infection”.

WHO COVID-19 technical officer Maria Van Kerkhove said, “The numbers are still low”. But the reduction in global surveillance could lead to rapid circulation of the virus…

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HEALTH

TOBACCO CONTROL: Seven out of 10 people protected by anti-smoking measures

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A new report from the World Health Organization (WHO) highlights that 5.6 billion people, or 71% of the world’s population, are now protected by at least one good practice policy to save lives from deadly smoking, five times more than in 2007.

Over the past 15 years, since WHO’s MPOWER measures were introduced globally, smoking rates have fallen. Without this reduction, the UN World Health Agency estimates that there are now 300 million more smokers worldwide. This new WHO report on the global tobacco epidemic focuses on protecting the public from passive smoking, noting that nearly 40% of countries now have fully non-smoking indoor public places. The report assesses the progress made by countries in tobacco control and shows that two other countries, Mauritius and the Netherlands, have reached the level of best practices for all MPOWER measures, a feat that only Brazil and Turkey have achieved so far. These data show that, slowly but surely, more and more people are protected from the harms of tobacco by WHO policies based on evidence and best practices.”said Dr Tedros Adhanom Ghebreyesus, Director-General of WHO, congratulating Mauritius on becoming the first country in Africa and the Netherlands on becoming the first country in the European Union to implement WHO’s comprehensive tobacco control policies at the highest level. Eight countries are only one policy away from joining the leaders of tobacco control: Ethiopia, Iran, Ireland, Jordan, Madagascar, Mexico, New Zealand and Spain. However, much remains to be done: 44 countries are not protected by any of WHO’s MPOWER measures. At the same time, 53 countries have still not adopted a total ban on smoking in health facilities. In addition, only half of the countries have smoke-free private workplaces and restaurants.

Passive smoking
“WHO urges all countries to implement all MPOWER measures at the level of best practices to fight the tobacco epidemic, which kills 8.7 million people worldwide, and to oppose the tobacco and nicotine industries, who are lobbying against these public health measures,” said Dr Ruediger Krech, Director of Health Promotion at WHO. About 1.3 million people die each year from second-hand smoke. All of these deaths could be prevented. People exposed to second-hand smoke are at risk of dying from heart disease, stroke, respiratory disease, type 2 diabetes and cancer. In this fight against tobacco, the ban on smoking in public spaces is only one of the measures of the Effective Tobacco Control Package, MPOWER, designed to help countries implement the WHO Framework Convention on Tobacco Control and stem the tobacco epidemic. The paper shows that all countries, regardless of income level, can lower the demand for deadly tobacco, achieve major public health victories and save billions of dollars in health care and production costs.

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HEALTH

SENEGAL – 400 cases of measles recorded

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Measles is back in force, with more than “400 cases recorded nationally”. It is a revelation of Doctor Boly Diop, responsible for epidemiological and post-vaccination surveillance at the Ministry of Health and Social Action, on Thursday, July 13, 2023.

“Performance in the first half of the year revealed the existence of a measles epidemic,” said Dr. Boly Diop, noting that Fatick is the only one of the country’s 14 regions that has yet to register a confirmed case of measles.

Outside of Fatick, all regions have confirmed cases of measles and there are districts that have become epidemic. This means that today, measles is back in force, there are confirmed cases and epidemics that are recorded throughout the regions,’ he said, on the sidelines of a quarterly coordination meeting for epidemiological surveillance.

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