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This BBC report shows how contact tracing works in Singapore to control the spread of coronavirus. On 4 February 20 Chinese tourists visited a traditional Chinese medicine shop in Singapore. Only 18 coronavirus cases had been recorded in Singapore on that date. That visit to the medicine shop created a new cluster for the disease to spread. Singapore's contact tracing units traced such locations through its well developed and extensive contact tracing programme, which follows the chain of the virus, identifying and isolating people before they can spread the virus further. For about 40% of the 243 cases so far on March 19 the first indication they had was a call from the Singapore Health Ministry.      About 6000 people have been contact traced so far, using a combination of CCTV footage, labor intensive detective work with phone calling. This includes an incident of a taxi ride of 6 minutes in which the person a yoga teacher was identified and contacted by the Health Ministry. Enforcement is done as the person was contacted at her home by three people who showed her a quarantine order, which said you could not go out or its fine time and jail time. With about 8000 people per square kilometre, Singapore is small and densely crowded. It could easily be overwhelmed with hospitals not able to cope and the health system collapsing if this was not done. Wuhan could have happened here, says infectious diseases specialist Dr. Leong at Mont Elizabeth Novena hospital, who advises the government.  Because the crime rate is low the police were given this task of tracing as a priority in addition to hospital units working on tracing. It also included the armed forces personnel helping with tracing so that it could be done quickly without delay. This provides a lesson on how countries that have faced the health crisis have used innovative methods to tackle it with good results. ...

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These simulations show the  importance of flattening the curve for coronavirus especially the steep jump in the curve when it grows exponentially as people mingle in crowded environments, on trains and subways, and in public gatherings of more than 10 people. This is shown here in four different simulations in the Washington Post. Social distancing and quarantine worked in China, Taiwan, Singapore and South Korea. Though the attempted quarantine simulation here does not cover the situations in China, Taiwan and Singapore where quarantine has worked and was the only way to tackle the coronavirus in time to do least damage. Additional simulations would show the way it was limited in Singapore through contact tracing and mandated staying at home for all who have come in contact with affected persons. And in South Korea a simulation could show how this worked through containment by testing and limiting spread, or China by an effective quarantine or lockdown of a city or province.  The basic idea is to limit contact and separate so that intermingling is restricted to as few places as possible for a limited period during which health authorites can achieve a controlled situation through systemwide organized efforts.  ...

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The people in the U.S. are shifting to widespread use of masks. There was some cultural resistance in Europe and the U.S. to use of masks, compared to Japan, South Korea and China where the use of masks in epidemics was common in earlier health crises. Europe changed first and now the U.S. is adopting masks as a way to avoid th spread of coronavirus. Health authorites in the U.S. now recommend use of masks to prevent asymptomatic people with infection from spreading the infection. Health experts say the widespread use of masks in Asia is one reason in addition to quarantines, contact tracing and isolation of clusters, is how China, South Korea, Taiwan and Singapore have controlled coronavirus to the point where it is no longer a serious danger.

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The lessons from Italy, the epicenter now of the coronavirus pandemic, are clear- act early and decisively, impose quarantines and lockdown quickly to prevent intermingling. These steps need to be put early, with absolute clarity, and strictly enforced. This report in the NYT shows how decisive action early is the only way to prevent the crisis from becoming a large one that threatens the health system and millions. German states such as Bavaria and others now have a $25,000 euro and some have jail time. Singapore has jail time and fines for violating the stay home quarantine orders which it imposes after contact tracing. Taiwan has similar measures. Enforcement and strict control are part of the tools that have worked in these places and in China, South Korea.  Britain has still to close flights from Iran, Italy, which The Times reports on March 20 are still landing at Heathrow. This is after the U.S. weeks earlier banned flights from China, Iran, Italy, and last week from Europe after EU nations failed to take action early.  ...

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Contact tracing being setup using iphones and android phones with bluetooth technology by Apple and Google. The idea is being studied for adoption by the U.S. government. The problem is that this kind of contact tracing is not as effective as the kind used by South Korea, Taiwan and Singapore with information from cellphone carriers. Contact tracing apps would be written by developers for each country and chosen by Apple and Google one for each country. How it works- When a person comes down with symptoms he can upload the information about who he has been close to stored on the phone. This information would then be used to contact the person who was exposed to the person with symptoms but unaware of this. A message would tell that person he was exposed to someone who now has symptoms and to contact public health authorites and take effective steps. When the person with symptoms gets tested if he was positive that would also appear on a exposed person's phone without name or other information.  The normal contact tracing is time intensive requiring many phone calls and using data from cellphone carriers. This is done in Singapore, Taiwan and South Korea. It is considered to be more effective. The approach of these Asian countries is more thorough and allows effective tracing and isolation, quarantining of persons having coronavirus or having exposure in countries with rampant coronavirus. The U.S. needs to move quickly to adopt the methods used in these Asian countries. The loss of hundreds of thousands of lives should be weighed against privacy concerns and clearly there should be a way to allow one time use of personal information for coronavirus, so that this kind of information is used only in public emergency situations. All three Asian countries are democracies. Putting health care workers at great risk including working pregnant doctors, as in the story in WSJ about a hospital in Maryland, should make it clear that everything including privacy concern should be placed in context, and use of personal information be permitted in a public emergency such as a contagious virus- with information protections removal for the period of the crisis. ...

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Jeremy Hunt, head of the Health Select Committee and Health Secretary 2012-2018, says Britain needs to take up mass contact tracing as its next national mission. Britain he says has passed 20,000 tests a day for coronavirus. America has passed 150,000 tests a day. Both more than South Korea. What is missing when compared to South Korea and Taiwan is mass contact tracing.  The app TraceTogether is not enough, as it was used by only 20% of Singapore's population. Only South Korea and Taiwan are able to open up the economy, have workplaces and life function close to normal through extensive testing and mass contact tracing, with feet on the ground. This is the only path that has worked with South Korea successfully out of the lockdown. This means "feet on the street." Making these calls requires skills, getting information, getting cooperation, offering guidance, and ensuring people isolate themselves after contact with an infected person. Sometimes it is by phone and sometimes in person wearing full PPE. They need to be sensitive enough in talking to someone feeling ill and to see how home isolation can be achieved, who else the coronavirus infected person or someone in the chain of contacts has been in contact with. Mr. Hunt says no effort should be spared in doing this as the millions of jobs in Britain, of people without work, the economy, and the need for light at the end of the tunnel of lockdowns, requires a way out. A huge task but a lot of impossible tasks are being tackled in the health services. The resources of Britain, every spare civil servant, every administrator not working, every one who can do this, needs to be enlisted to do this. The same task needs to be tackled in America, and in other countries as a national mission. ...

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China reports no new coronavirus infections for the first time on March 19. The outbreak in Italy now surpasses that in China.  The U.S. government is now shifting to social distancing as the most effective way to control the spread and away from focus on widespread testing as a containment tool. The experience in China shows social distancing works, quarantine works. Countries and regions that have neglected to do this early are the ones worst hit, including most of Europe.  The reintroduction of the infection after its containment is addressed by quarantine and social distancing and use of masks, government disinfecting hard surfaces in all public areas, a program implemented strictly in Asian countries such as Singapore, China, Taiwan, and other Asian countries. Use of masks was common in Asian countries in earlier episodes of SARS and other epidemics, making it widely used long before this crisis. This is making a significant impact in addition to social distancing and other quarantine measures taken in China.   ...

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Germany has shown that low tech contact tracing efforts work- no apps needed, a phone, a desktop computer with a centralized database, and most important the human relations skills of the person doing the calls. The  sensitivity to the situation facing each person being called, being able to talk to the person in the language they speak in a multilingual environment such as California, is shown here. A 40 person team operates in San Francisco consisting of public health officials, clinicians, medical students and librarians. They call the contacts of people with coronavirus, arrange tests, and as needed send packages of food and medicines to hotel rooms or homes. Every call is expected to last 15 minutes but all sorts of questions are handled.  English and Spanish are used. Here one of the persons doing the contact tracing says she does not use apps, just an open source software used in the fight against Ebola. Definitely low tech, no waiting, get going is the message to every city in the world. She says apps software such as what Google and Apple are putting out can tell you whether the person went to some place, but cannot tell you more about that person, cannot tell you about problems the person is having being tested, and how they are having difficulty providing for families. One of the big lessons from Germany and efforts such as this one in San Francisco, and in other places such as Paris, Singapore, Taiwan, is that there is a complex nature to contact tracing that cannot be solved by tech. In fact the best thing to do is to get started immediately, with a phone and a database on a computer, as long as you have a person who has the motivation and skills, empathy with people, a lot can be done. Waiting for apps is a dangerous waste of time is shown by the low tech German experience, and the experience in other places. Most important is starting immediately. The example shown here of working with migrant workers in contact tracing shows in the most vulnerable places it is these human relations skills that count, that no tech app can do. It requires detective skills to find out and get people to share their history of movements and contacts for 14 days . In Singapore crowded dormitories house 300,000 of 1.4 million migrant workers. Singapore using an app also but its use is secondary. Apps don't work in many situations but fail in the most critical situations such as these dormitories and other eccentric or atypical situations such as faced by South Korea with religious groups and gay communities, elderly people in Europe, that generate the worst dangers of spread and need to be cluster isolated quickly. Human contact tracing has a history of being an effective method and was used in China and South Korea during the 2003 SARS epidemic. More countries need to adopt the method used in Asia and in Germany, particularly Britain, the U.S., France and India. It is OK that Britain's NHS and India's national government with Aarogya Setu app have put out their own apps which balance privacy concerns with the need to act immediately and cover the entire country, but the hard slog of human contact tracing teams in each district is indispensable. This is why the former Health minister in Britain calls it Britain's national mission to do this. Speed is key- putting together teams across the country in every district from skilled volunteers or government workers, and pulling together the phone and a centralized database on a computer as basic equipment. The fact that this is easily doable and people with human skills needed can always be recruited as they have been in Germany- from public officials in local government who are less busy in lockdowns, medical students, clinicians, volunteers, people from different professions- makes it inexcusable not to learn from others experience and get going. Just Do It. You want to reopen business, professions, offices and public services- Just Do It, it makes this possible. You want to prevent spread of the virus- Just Do It, it makes this possible. You want to limit damage to the economy and get the recovery going- Just Do It, it makes this possible. People of all shades of opinion can agree on this- its the only thing that works, even when there is a lack of enough proper accurate testing. ...

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Having an adequate supply of N95 masks is critical for each hospital tackling the coronavirus pandemic. The lack of enough masks leaves health care personnel without the basic protection and is a grave emergency. Hospitals are resorting to reuse of the masks in this crisis and this is not a good practice as it increases the chances of infection. President Trump has invoked the Defense Production Act on April 2 against 3M. This gives the federal government more control over 3M's operations to ensure that it goes all out to make the healthcare N95 masks that the hospitals need in this grave emergency. This report in the WSJ covers the situation as of April 3 on the supply of M95 masks for health workers and others. N95 masks block 95% of very small particles. Supply in the U.S. is for 50 million N95 masks. Demand in the U.S. is for 300 million N95 masks as estimated by the Department of Health and Human Services. in March- this is how many are needed by health care workers to fight this pandemic in the U.S. The principal manufacturer is 3M. 3M company has doubled its production since January 2020. The trend before this pandemic was to send production over to China and other countries. This is changing now with the pandemic and the U.S. policy shifting to be self sufficient in medical supplies in the event of an emergency. A policy Peter Navarro, who heads the agency in charge of getting medical supplies, says President Trump is insisting be implemented. Hospital buyers supported the earlier trend to keep costs down, but this appears to be a costly mistake, putting health care workers in hospitals across the U.S. without the basic protection they need. Minnesota based 3M invented the first modern disposable masks in the 1960's. Interestingly 3M continued to make millions of masks in the U.S. even though competitors moved manufacturing overseas. The 50 million disposable masks 3M made globally went to workers in industries where it provided extra safety from metal shavings or other substances, and medical workers. Now 90% of masks go to medical workers. 3M ramped up production globally since January 11 when the pandemic first hit to 100 million masks a month globally, and 35 million a month in the U.S. at plants in South Dakota and Nebraska. 3M says that it will import 10 million masks from its factory in China, which earlier this year was restricted from shipping it outside China as China needed masks for the pandemic. About 10 million more masks are made by two other manufacturers Alpha Pro and Louis Gerson Co.  U.S. Department of Health and Human Services ordered 600 million N95 masks from 5 companies to distribute to hospitals and build up the national medical supply stockpile. 190 million each of this is from 3M and Honeywell and 130 million Owens & Minor Inc.  3M says it will make 50 million a month in the U.S. by June. Honeywell which had moved production overseas, plans to bring back production to the U.S. by making 10 million masks by May at its Rhode Island and Phoenix plants. There is a company in Singapore that makes one million masks a day in China and other Asian countries, Pasture Pharma Pte, but most of it is committed to government agencies in China.   ...

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In a corner of Wales known for its coastline and scenic beauty, a biology teacher Mr. Barry Rees sets up a homemade contact tracing system that worked. He is the director of Ceredigion county council. It is the safest county in mainland Britain with only 45 recorded cases in the last week for 75,000 residents. Early on in the coronavirus epidemic Mr. Rees decided to take up contact tracing with whatever resources were on hand and start quickly. This was was happening in German states which were also following low tech, get started quickly approach, but Rees was not aware of what was already happening in Germany. He knew about South Korea and Singapore efforts in contact tracing which put a lot of emphasis on human skills in calling and tracing and getting started immediately. Rees started with the people calling in sick of the 4000 people who worked for the county administration, as he had no testing resources. He started tracing these people and their contacts, and even though some were defensive the majority supported intervention to isolate. At the time there were fears of 200 deaths in the county so that there was no time to lose.  By April the area was facing an influx of people from Aberystwyth University and tourists visiting its sandy beaches, another reason for taking on the task with a homemade system. Today it has one tenth the cases in the rest of Wales.  The hidden fear in the country is that word can get out and lead to more visitors from outside the county. ...

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Two US carrier strike groups and 17 naval ships prepare for joint exercizes with Japan's Self-Defense Forces off Okinawa in the first week of October 2021. In late September a British aircraft carrier group goes through the Taiwan Straits. China has flown aircraft near Taiwan's airspace before. On October 1-5 over a period of 4 days China sends 150 fighter, bombers and other aircraft near Taiwanese airspace. This situation is reminiscent of the situation in 1950-53 during the period of the Korean War when US president Harry Truman sent the Seventh Fleet to the Straits of Taiwan. In 1954 Chinese artillery started the shelling of offshore islands Quemoy and Matsu. This happened again in 1958 under president Eisenhower. At that point the US sent a naval contingent to the Taiwan Straits. The crisis was resolved through talks with China. Eisenhower then setup a joint defense agreement with Taiwan.  Here the Taiwan Defense Minister says China is capable of an invasion of Taiwan in 2021 but "it has to calculate what it would cost and what kind of outcome it would achieve." He also says that after 2025 "it would have lowered the costs and losses to a minimum." As US companies seek expansion in China the situation is changing rapidly in 2021 in the other areas.The US under president Biden sees the wars under previous presidents and the economic policies of not investing in American industrial strength have created risks for America in its role in the world. Biden seeks to restore American industrial strength through massive investments. It has been reported that Taiwan even considers the concentration of world semiconductor industry in Taiwan a way to assure the US dependence on Taiwan for semiconductors would lead to allied economic commitment to Taiwan in addition to defense commitments already given. In a sign of awareness of the distorted situation in semiconductor manufacturing that American companies such as Intel have allowed to happen, including ceding essential technologies in manufacturing semiconductors to other nations, the Biden administration has pushed to reverse these policies giving $52 billion in state aid. President Biden talked to president Xi of China in early September in a 90 minute call. This was aimed at easing hostility between the two countries. During that call the two leaders had agreed to abide by the Taiwan Relations Act, that states Taiwan's status should be resolved through peaceful means. It was passed in the US Congress in 1979 during the period when the US restored diplomatic relations with China. The situation today resembles that in the period after the Korean War into the late 1950's when China under Mao continued shelling of islands under Taiwan from the mainland. This makes the existing supply chains that make the US, Europe and India overly dependent on China,Taiwan, Singapore, for manufactured goods look antiquated and out of place. American companies such as Apple, GM, Black Rock and American financial companies are caught in a bind as they operate as if nothing is happening, when a lot has changed during the coronavirus pandemic. The Biden administration is pursuing its own long term policy for restructuring the supply chain for American industry. ...