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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%.

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The Biden administration plans to have booster shots for most Americans 8 months after the original second dose. It will start with health care workers and older Americans as early as mid-September. This is designed to control the spread of Delta and other variants and protect people.

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European Union countries reopen for travel this summer. A new travel pass or digital Covid certificate is approved to promote freedom of travel as more people get vaccinated. About a third of people are vaccinated for first shot in France and about 40% in Germany, which means in coming weeks they will have the second shot and enough antibodies to make a return to normal life possible. The EU has negotiated this time with Pfizer for 1.8 billion doses and is building enough vaccine supplies. For the first time governments are stepping up with plans and resources allocated - in India the government now has plans to create supplies of 2 billion doses by the end of the year. This means there is new hope if the vaccination is accompanied by efforts to build booster shot supplies this time planning ahead. Managing the risk of those who are vaccine skeptical remains a problem to be tackled. Masks and other essential precautions also need to be followed in crowded spaces as this was neglected where there was a second or third wave. Public education for this is essential to better manage the pandemic. ...

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Christina Romer, Prof. of Economics at the University of California, Berkeley, was chairwoman of the Council of Economic Advisors under U.S. president Obama. Here she discusses the different aspects of the debate on raising the minimum wage. Romer says the negative effects on unemployment are small. The impact on consumer spending is also limited. The anti-poverty effects are real for raising the minimum wage from the current $7.25 an hour, says Romer, as over half the families earning a minimum wage make less than $40,000 an hour. President Obama called for raising the minimum wage to $9 an hour in 2013. Studies show 13 million U.S. workers earning less than $9 an hour. Raising the incomes of these families by about $3500 an year under the president's proposal gives workers badly needed income to cope with rising cost of gas, food and other basic necessities. The effects on consumer spending are small, estimated at between $10 to $20 billion. Its main virtue is keeping the principle of fairness and maintaining social cohesion at a time of increaing inequality. Romer says there is competition for workers which makes it possible for workers at the lower end to get a fair wage, but does not account for the effect of high unemployment which takes pressure off raising the minimum wage in the market economy. Another benefit for countries of keeping a fair minimum wage is that other actions can be taken to improve competitiveness for business and manufacturing and reducing the deficit and be seen in a positive context of overall improvement. This is part of the case made in Europe for boosting the mnimum wage as austerity measures are taking place....