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

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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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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 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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Risks are increasing in the southeast and midwestern states in the US where vaccination rates are as low as 30%. The Delta variant of coronavirus is now the dominant virus strain in the US. It is highly transmissible, estimated to be about 50% more transmissible than the original virus. The region covering Missouri, Iowa, Kansas and Nebraska, as well as Wyoming is affected, in addition to the southeastern states, as these states have lower rates of vaccination and vaccine skepticism. As communities in the US and UK reduce pandemic restrictions and open for the summer the risks of last year are being brought up by experts. 

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With only 4% of the people vaccinated in a population of 97 million Vietnam faces severe stress from the Delta variant. Ho Chi Minh City faces the effects of an extended lockdown. The outbreak of coronavirus and lockdowns have put millions of people out of work or on reduced pay.

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As restrictions ease and the Delta variant makes up 83% of US cases, cases increase in the US. Stalled vaccination rates presents an added problem. On July 20 49% of the US population was fully vaccinated. Two thirds of counties in the US have less than 40% coverage, according to CDC director Walensky.

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This report in FR24 says the UK reopening by June 21 is at risk as the new delta variant is leading to a rise in covid cases. Covid is growing at 3% a day, with the R ratio at between 1.0 and 1.2 for the second week in a row, says the UK Health Ministry. With new more contagious variants what looks cautiously optimistic in one week can look very different in a 2-3 week period after that especially as complacency creeps in and essential protocols are neglected.

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An India like surge is feared for Indonesia with the spread of the Delta variant and rising cases. Sudden spikes in Jakarta, central Java, and Bangkalan on the Java coast are straining hospitals. A nation of 270 million Indonesia has only a small vaccination program dependent on Sinovac vaccine from China, and only 5% are vaccinated.

Doctors say whether you are young or old have co-morbidities or not you can catch the coronavirus delta variant. Several members of a household can catch it and the deterioration happens quickly. Doctors in India made similar comments during the surge there in May 2021. Kudus region in central Java is typical. At first cases were declining from a January peak by May. Then cases jumped in June. A third of cases turned up positive for PCR tests.

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In this interview in The Hindu with Public Health Foundation of India president Srinath Reddy, the importance of safe behaviours including masks and social distancing, public discipline to tackle a potential third wave. This was also pointed out separately by the Director AIIMS.  Mr. Reddy says study by Public Health England shows just one dose of Astra Zeneca vaccine is not very effective against the Delta variant- about 30% effective. As a result he suggests the need to reduce the spacing intervals which are at 8-12 weeks to a shorter interval now that adequate supplies of vaccine will be available starting in July and August till the end of the year. The initial spacing was 4 weeks when Astra Zeneca vaccine was first introduced and at which time the variants had not emerged. The Indian federal government affidavit to the Supreme Court shows that 1880 million doses of vaccine will be available by the end of the year 2021 to vaccinate fully with 2 doses the population of India over 18 years using 5 locally manufactured Made in India vaccines. This does not include the mRNA vaccines that will be made available from Moderna and Pfizer for which cold storage facilities are being prepared by the federal government.   ...

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The problem facing Africa is whether vaccine supplies will run out before new vaccine supplies come from America, Britain and France. Only less than 1% of African people have been fully vaccinated out of a population of 1.3 billion people. US president Biden said America will provide 500 million doses of Pfizer vaccine to poor nations before the G-7 meeting in Cornwall, UK. Britain added 100 million and France 30 million doses. With new more transmissable variants out there Africa is in considerable danger today. The Delta variant from India has been shown to be about 70% more contagious than the Alpha variant from Kent UK. It is already the dominant variant for new cases in the UK. The new variants are now spreading in Africa. Cities such as Johannesburg, South Africa, and Kampala, Uganda are seeing a surge in cases. Another problem in Africa is that governments are increasingly reluctant to impose strong lockdowns because of the economy. Already it is believed that Africa's middle class has been severely affected during the last 18 months. ...

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Protection from hospitalization for Omicron variants can drop to 57% from 81% after 6 months from second dose, and can be pushed back up to 90% using booster shots for Pfizer and Moderna vaccines, according to a large CDC study in the US. For Delta variant period last year the vaccine effectiveness against hospitalization was 90% from about two weeks after dose two till 6 months, dropping to 81% after 6 months, and up to 94% after a booster shot. For Omicron variant the currently vaccine effectiveness for same periods is 81%, 57%, and 90%.