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Tara Parker Pope of the NYT has this advice about protecting yourself against coronavirus variants after talking to many infectious disease and other experts. Don't let your guard down she says and suggests some of the same precautions that were taken in earlier waves of the coronavirus, from masks to social distancing and prudent decisions about travel and shopping.

Vaccines offer protection against common coronavirus variants such as B.1.1.7  from UK. It is still wise to follow the prudent rules that were followed before.

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Julian Tang, a clinical virologist and professor at Leicester University looks at the risks of coronavirus variants. Variants from South Africa, B.1.1.7 variant and a variant from Brazil have complicated efforts of the vaccination drive in Britain, US and Europe. 

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Moderna has made the initial batches of doses of the vaccine for the variant of coronavirus including South African variant, and shipped these to the National Institutes of Health in the US. If the test results are positive the vaccine for variant could be given authorization by the third quarter of 2021. It is becoming crucial to stay ahead of variants developing from the coronavirus and pharmaceutical companies Pfizer, J&J, Astra Zeneca are working on the technology to tackle this.

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Bharat Biotech that makes India's Covaxin vaccine says its Phase 3 trials show the vaccine 93.4% effective against severe symptomatic coronavirus.

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For the regions hardest hit by the coronavirus and its variants- the US, Brazil, India, Europe, Russia, China and Africa, the researchers and the frontline workers in South Africa are doing an incredible job. This report by Stephanie Nolan in the NYT shows the work of researchers at KRISPS advanced medical research center and the frontline workers in South Africa, who are making a difference. Shown are researchers and scientists at KwaZulu Natal Research Innovation and Sequencing Platform in Durban, South Africa on whom the world depends for stepping up the fight against the coronavirus- Dr Tulio de Oliveira, principal investigator of the national genetic monitoring network, and Saleem Abdul Karim, epidemiologist. On the frontline workers who visit patients homes to make sure immune compromised patients have access to their medications is Sizakele Mathe, community health worker. Stephanie Nolan has provided a much needed account of what work is being done on the frontlines to keep us all safe. ...

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The importance of catching early any cases of coronavirus variant originating in Brazil, variants that could reduce vaccine effectiveness and spread quickly. The effort is taking place in the UK.

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Stephanie Nolan's reports from Africa provide the few glimpses one can get today of the situation in Africa where variants are growing as a result of lack of vaccines (vaccine inequality) and the faltering vaccination drive, shortage of medicine and food supplies. Her report from South Africa showed how healthworkers and scientists in South Africa are working hard on the frontlines. This one from Zambia looks at the vaccination centers and vaccination workers as vaccination drives falter. The African continent with 1.4 billion people received 404 million doses. Today only 7% of the population is vaccinated in Zambia and the rest of Africa. People in Zambia do not have car transport so they have to walk 3-6 kilometres to get to a vaccination center, when they turn up at a center and it is out of vaccines they stop coming. Other problems are the social media accounts that show the vaccination drives as harmful to people, or CNN and other news that talk about blood clots that when carefully understood affect a tiny fraction of people. There are other issues also. Ida Musonda, a nurse in a clinic near Lusaka says after not many people turned up that she should go to markets and churches, but says there is no fuel for the vehicle to get clinic workers there. Bernadette Kawango is shown with her children. She works at an auto parts store and lives in a low income neighborhood in the edge of Lusaka. She ignores all the social media accounts that scare people from vaccines, yet she says she worries more about cholera, TB and malaria, and also HIV, AIDS. And she does not know anybody diagnosed with coronavirus.  The result is that there is vaccine shortage resulting in a kind of vaccine indifference (why walk miles to a center if it may not have vaccines), compounded by other problems such as the other diseases that also pose a threat in Africa, and the low incomes in a shrinking economy. And with about 8% vaccinated in Africa, the problem of variants can only be tackled by consistent and not erratic supply of vaccines. ...

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The Indian variant B.1.617.2 is beleived to be 50% more transmisable than the UK variant B.1.1.7 variant of the coronavirus. It is expected to be the dominant strain of coronavirus in the UK. The government has sent out the army to vaccinate populations in UK where this variant is widespread.

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States in America's Deep South have a much lower rate of people having taken one shot of vaccination, in the 30-40% range by May 2021. This report says states such as Alabama, Arkansas, Georgia, and others in the South are at risk of seeing a new wave of the coronavirus  because people will spend more time in airconditioned spaces in the summer. In contrast to the north with cold winters and indoor heated spaces people in the southern states can spend more time outdoors because of the warmer weather in winter. This may have protected southerners during the winter and spring months. This may reverse with more time spent in airconditioned indoor spaces in close proximity where the coronavirus infections can increase. This report comes as new reports show the Indian coronavirus variant becoming more prevalent in the UK and other countries. This variant spreads about 50% more rapidly than an earlier UK variant, say experts. Another analysis in The Times of London shows that the imperceptible rise phase of the new coronavirus variants is the most dangerous part of the coronavirus as it dulls the sense of danger in the population that makes it take notice and prepare countermeasures early enough. India is an example of how this can happen as the sudden rise actually started with a first imperceptible increase in March and early April 2021 that changed into a rapid escalation of the virus in the population by May 2021. The vaccinations give a strong sense of confidence, however the vaccination rates vary widely state by state in the US. ...

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European Union countries, Britain and the US face the risk of a resurgence of coronavirus through the Delta variant and other variants. The Delta variant detected in India is 40% to 80% more transmissible than the Alpha variant detected in the UK, with the Alpha variant 50% more transmissible than the original coronavirus that originated in Wuhan.    Virologists in Italy feel they are flying blind at this time because of the lack of genetic sequencing in Italy, Spain, France and across most European Union countries. The UK has done genetic sequencing on 27% of recent covid positive tests. The figure drops to 1% for Italy and is tiny for most of the EU countries including Spain and France. Without genetic sequencing it is hard to predict and take steps. Another problem in the EU is that the southern economies Spain, Portugal, Greece, Italy, Croatia are dependent on summer tourism for the economy. The UK economy can handle a delay to a full opening for 6 weeks without serious impact to the economy, says WSJ. Southern European economies can afford only short delays to full reopening. Croatia acted as a door to spread of coronavirus into central Europe when Germans and Austrians went to vacation spots in Croatia in summer 2020. This situation could be happening again in 2020 with British and other tourists visiting vacation areas in Portugal, and Germans visiting Greece and other summer tourism spots. Portugal's national health institute says the Delta variant represents 60% of new cases in the area around Lisbon based on early data. The government of Portugal is facing criticism for letting a Champions League soccer final to take place in Porto, Portugal between two English teams. Thousands of English fans watched the game at the stadium. Other problems are in relaxing of mask rules in France and Italy, last week in France and in the coming week in Italy. French nightclubs open July 9 without mask requirement. Germany is maintaining some social distancing measures and this includes mandating medical masks in closed public spaces and on public transport. Half of French, Italians, Germans are vaccinated and quarter fully vaccinated. Yet the gaps of unvaccinated people is large enough to cause serious concern of another wave. The relaxation of mask rules- the entire stadium in Budapest was packed for a recent game between Hungary and Italy for a soccer Euro 2021 game with no masks to be seen. Stadiums played a key role for the spread of the original coronavirus in Italy with a game in Bergamo, Italy, in the area near Milan. All this makes health officials concerned about the risks of still another wave of the coronavirus.   ...

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A study shown in New England Journal of Medicine shows Pfizer vaccine 2 doses offers 88% protection from symptomatic disease for delta variant of coronavirus. The Astra Zeneca vaccine has 67% protection against delta variant after 2 doses.

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Italy faces tighter restrictions and a national lockdown at Easter for the coronavirus, Italians who were the first to go into lockdown on March 10, 2020, now think they will be the last to exit lockdowns. The mood in Europe is of frustration with the slow vaccination drive and the failure to procure enough vaccine supplies and to approve vaccines in time. The US and Britain have vaccination drives that are moving rapidly leading to a reduction in cases and deaths. In Europe new cases are rising since mid February 2021, and there is the spread of the new variant first detected in the UK.  The variants make up 70% of new cases in France says Health Minister Olivier Veran. ICU's in France are 80% full. Elections in France in 2022 and in Germany in September 2021 are leading to government reluctance to impose tighter restrictions. The government strategy is now being questioned. Only 30% of Germans now have confidence in chancellor Merkel's ability to make competent decisions. The CDU's partner in the government, the SDU socialists have even less trust with SDU getting less than 10%. There are signs of a third wave of coronavirus in Germany resulting from variants of the virus, slow vaccinations, and reopenings. ...

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The variant first identified in India called the Delta variant is 60% more infectious than the Kent variant found in the UK. The Delta variant is now the dominant variant in the UK. There is concern that this could lead to another wave just as the UK is reopening in the summer. There are over 6000 daily cases in the UK this week. The estimated R number is now 1.00 to 1.2 following the number being 1.00 to 1.1 in the earlier week. A R number over 1.0 suggests greater spread of the coronavirus. An R number of 1.1 suggests the number of cumulative cases is taking off meaning that the UK is at risk of a sudden surge in the coronavirus in June or July 2021. India faced a wave from the new variant's higher rate of infectious spread. leading to a sudden surge in May 2021 to 400,000 daily cases before it was brought down by June 1 to about 100,000 The number of hospitalizations in such a wave is estimated to be higher in UK than the previous waves, requiring the government to be more vigilant today. Restrictions on travel from Portugal are being put in place in UK as a precaution. After repeated waves as a consequence of complacency with the coronavirus the lesson now is to take steps early and take aggressive action in advance. ...

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The role of human behaviour not lockdown restrictions alone that help prevent spread of coronavirus variant.

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China's response to the delta variant of coronavirus and the difficulties it is facing.

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The third or booster dose of vaccine is needed to take out the Omicron variant. The UK Health Security Agency analyzed data from 581 Omicron cases and thousands of Delta cases to calculate how effective vaccines such as Pfizer and Astra Zeneca were against the Omicron variant. This early analysis shows a third booster dose prevents around 75% of people from getting any coronavirus symptoms. The double dose of the vaccine however provides good protection against severe coronavirus that needed hospital treatment says the UK Health Security Agency. Of equal concern is the rate of spread of the Omicron variant. Here this BBC report shows graphs of UK National Health Security Agency which show the rate of spread is rapid with cases doubling every 2-3 days. For the UK which on December 10 had about 1265 cases this means says this BBC report that the number of Omicron cases could be well above 100,000 in the UK by the end of December. The BBC graph shows the curve for Omicron cases moving in a close to vertical direction upwards. Reports say the experience in South Africa where the Omicron variant was first detected is similar in pattern causing rapid spread. ...

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This graphic report in NYT shows how the B.1.1.7 coronavirus variant spread in Europe and how dangerous it can be. It was first seen in Britain and is more contagious increasing the risk in the third and fourth wave of coronavirus in 2021.

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This DW.com report looks at the first female black mayor of Johnnesburg who gets to work in a challenging situation with the spread of Omicron variant of coronavirus.

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The head of the European Centres for Disease Control ECDC, Dr. Andrea Ammon, says the Delta variant of the coronavirus will make up 70% of all cases in Europe by early August, and 90% of all cases by the end of August. ECD modeling shows that there is a risk of another wave like the one after last summer in Europe. The Delta variant is much more infectious than the UK Alpha variant and the UK variant much more infectious than the original variant. A 50% reduction in non-pharmaceutical interventions such as allowing the staging of events would lead to an increase in infection in all age groups. Latest ECDC data show 34% of people in Europe fully vaccinated and 57% with one dose. One dose offers much less protection. Younger individuals have a lower vaccination rate and are vulnerable. Also vulnerable are the older people not vaccinated yet. About 40% of people over 60 are not yet vaccinated, and 30% of people over 80 years are not yet vaccinated in the European Union. As in the US vaccination varies by region within the EU. All these vulnerable groups can be affected in another wave of the coronavirus similar to after last summer when restrictions were removed. Dr. Ammon is a former advisor to the German government. She says it is important for young people who are not vaccinated to continue to follow the strict social distancing precautions.  This is not happening today as governments are relaxing mask mandates in Britain, France and Spain. Soccer games are coming back to fan filled stadiums increasing the risk. Tourist spots in Portugal and Greece are now looking similar to the vacation spots in Croatia that increased infections in Europe after summer 2020. ...

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The B.1.1.7 coronavirus variant from UK has changed the level of vaccination needed to where life returns to normal, says the Pasteur Institute in France. The level of vaccination has to be higher than the 70% or 80% earlier thought  to be needed for people over age of 18, in the range of 90% now that more infectious variant spread is happening. This also means social distancing and mask use, healthy foods and habits of exercize remain vital.

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20,000 new cases from coronavirus variant in South Africa as it struggles to cope, in this report in DW.com.

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The Moderna and Pfizer vaccines are effective against the virus variant identified in Britain. It is less effective against the virus variant from South Africa. The U.S. banned all travel to and from South Africa effective Jan 30. U.S. coronavirus cases were at 125,000 on Jan 24 down 20% for the week.