Sky News published this video item, entitled “Coronavirus: South Africa’s COVID lockdown may have created ‘herd immunity'” – below is their description.
Leading scientists in South Africa believe the country has established a form of collective or herd immunity to COVID-19 after the number of infections unexpectedly plummeted following a major outbreak in June and July.
Commenting on a series of studies revealing the existence of high infection rates in the provinces of Western Cape and Gauteng, the country’s leading vaccinologist, Professor Shabir Mahdi, told Sky News that he believed the coronavirus had stimulated a level of immunity in approximately 12 to 15 million people.
“What has happened in SA today, the only way to explain it, the only plausible way to explain it is that some sort of herd immunity has been reached when combined with the use of non-pharmaceutical interventions… like the wearing of masks, physical distancing, ensuring ventilation when indoors and so on.”
At the height of the pandemic, South Africa was ranked as the world’s fifth most-effected country, behind the US, India, Brazil and Russia – all of which have much larger populations.
It was at this point that researchers based in Cape Town began testing for traces of the virus in blood samples provided at local clinics by pregnant woman and HIV patients.
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Sky News is a British free-to-air television news channel and organisation. Sky News is distributed via a radio news service, and through online channels. It is owned by Sky Group, a division of Comcast. John Ryley is the head of Sky News, a role he has held since June 2006.
Brazil is the largest country in both South America and Latin America.
Its capital is Brasília, and its most populous city is São Paulo. The federation is composed of the union of the 26 states and the Federal District. It is the largest country to have Portuguese as an official language and the only one in the Americas, as well as the most populous Roman Catholic-majority country.
Its Amazon basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. Brazil is classified as an upper-middle income economy by the World Bank and a newly industrialized country.
Covid-19 is the official WHO name given to the novel coronavirus which broke out in late 2019 and began to spread in the early months of 2020.
Symptoms of coronavirus
The main symptoms of coronavirus are:
a persistent new cough (non productive, dry)
a high temperature (e.g. head feels warm to the touch)
shortness of breath (if this is abnormal for the individual, or increased)
Latest News about Covid-19
Below are stories from around the globe related to the 2020 outbreak of novel Coronavirus – since the WHO gave the Covid-19 naming. Most recent items are posted nearest the top.
The human immunodeficiency viruses (HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.
Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype. In most cases, HIV is a sexually transmitted infection and occurs by contact with or transfer of blood, pre-ejaculate, semen, and vaginal fluids. Research has shown (for both same-sex and opposite-sex couples) that HIV is untransmittable through condomless sexual intercourse if the HIV-positive partner has a consistently undetectable viral load.
Non-sexual transmission can occur from an infected mother to her infant during pregnancy, during childbirth by exposure to her blood or vaginal fluid, and through breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by land area, and the most populous democracy in the world. New Delhi is the capital.
It has an exceptionally diverse population, with Hindus, Muslims, Christians, Sikhs, Buddhists, Jains and other religions speaking over 21 recognised languages.
During the 2020 Covid-19 epidemic, lockdown has come to mean the practice of attempting to control transmission of the virus by means of restricting people’s movement and activities on a broad scale, usually on a national or state-wide basis.
Russia, or the Russian Federation, is a transcontinental country located in Eastern Europe and Northern Asia. It extends from the Baltic Sea in the west to the Pacific Ocean in the east, and from the Arctic Ocean in the north to the Black Sea and the Caspian Sea in the south.
Russia spans more than one-eighth of the Earth’s inhabited land area, stretching eleven time zones, and bordering 16 sovereign nations. Moscow is the country’s capital.
The Soviet Union was dissolved in 1991 and since 1993 Russia been governed as a federal semi-presidential republic. Russia is a major great power, with the world’s second-most powerful military, and the fourth-highest military expenditure. As a recognised nuclear-weapon state, the country possesses the world’s largest stockpile of nuclear weapons.
South Africa is a country on the southernmost tip of the African continent, marked by several distinct ecosystems. Inland safari destination Kruger National Park is populated by big game. The Western Cape offers beaches, lush winelands around Stellenbosch and Paarl, craggy cliffs at the Cape of Good Hope, forest and lagoons along the Garden Route, and the city of Cape Town, beneath flat-topped Table Mountain.
