Dr. Brian G.M. Durie (1942-2025) was the co-founder of the IMF. He was a Professor of Medicine, Hematologist/Oncologist, and Honoree MD at the University of Brussels.
May 14, 2020
COVID-19 is actively spreading in communities across America. In the absence of treatment and a vaccine, the only things we have to manage the pandemic crisis are public health measures, such as good hygiene, physical distancing and face coverings. Looking to past pandemics, from the 1918-19 influenza pandemic to the Great Plague of the 18th century (when “quarantine” was first used), the central question has always been: how long is physical distancing required? The answer today is clear: 4 to 6 weeks is not enough to suppress the infection. Closer to 12 weeks are essential to approach elimination of the virus in the community and stop the spread.
A recent example in South Korea illustrates the problems that emerge with shorter periods of quarantine or physical distancing. On May 1, a 29-year-old man visited several nightclubs in Seoul. On May 7, he tested positive for COVID-19. More than 10,000 people were in the vicinity of the clubs between April 24 and May 6—a huge challenge for contact tracing! Officials immediately learned that two individuals who tested positive on May 2 were additional sources of early spread. The authorities began offering anonymous testing to encourage tracing of almost 2,000 club-goers (who were reluctant to be traced to the club district). With aggressive tracing and testing, it is hoped that the new cluster can be rapidly contained. This is the challenge. Unless the numbers are either zero or very low BEFORE a new cluster pops up, there is little chance of containment.
This diagram illustrates how just one infected individual entering the local population can lead to multiple new clusters if that person participates in a large group setting, like parties, weddings, nightclubs, or attends face-to-face business meetings. Studies show that most clusters then evolve within family groups, with an average of 3 to 5 people getting infected. An infected individual brings the infection home and may infect a family member in a vulnerable group. The second most common source of infection is that passed along on public transportation, such as subways and buses, where contact tracing would be extremely challenging.
Testing for COVID-19 infection itself (not the antibodies) is essential to trace or track COVID-19 in the community. The U.S. has not come close to the adequate testing we need to understand where infection is occurring in our communities or track any new episode. And the tests we do have are not well standardized. An unfortunate example is at The White House, where, according to reports this week, the Abbott rapid test in use has a 48% false negative rate. This means the result is almost like flipping a coin. New at-home testing may prove to be convenient, accurate, and fast enough to make tracing feasible.
Antibody testing is even more unreliable and is not broadly recommended for individual use. However, antibody testing is important to assess community spread (positive patients who have been infected) and identify individuals in the recovery phase who have high antibody levels and can donate plasma to help very sick COVID-19 patients. Although results with plasma infusions are encouraging, the extent to which the antibodies indicate true immunity and can help others remains to be seen. Clinical trials are moving forward.
The status of COVID-19 and antibody testing means that for myeloma patients—or any person returning to work—the re-entry into the community is a dangerous proposition. One must assume that anyone new encountered may have active COVID-19 infection that could be asymptomatic at that moment.
Myeloma clinics are requiring COVID-19 testing before allowing patients back into the myeloma clinic, and this will also be a priority for all businesses as workers return. Hygiene, physical distancing and face coverings will be an ongoing recommendation to stay safe in any group setting. It is important to emphasize that thorough and frequent hand-washing, physical distancing and wearing masks are very effective in limiting the spread of infection in the hospital setting and will undoubtedly be effective in broader use.
So, creating a culture of infection-control measures, quite familiar to myeloma patients, is extremely important and can be very effective for the coming future.
Elimination of COVID-19 in the community must be the goal. Without elimination, everyone, including the vulnerable, is at risk from community contacts. What does this mean for future activities? Because there are so many challenges that will come with reopening society and work, it is important to identify where fun might be possible if we are to retain our sanity!
I will discuss the challenges first, but if you want to skip straight to the fun, please do.
These precautions apply to returning to the myeloma clinic. Ideally, clinics will be set up so that there is NO waiting — you will go straight into a carefully cleaned consultation room. The consultations will be spaced out to prevent encounters with other patients or personnel. This will probably require appointments into the evenings and weekends to accommodate all patients. Rooms will be well-ventilated, and consultations will be kept shorter to avoid prolonged presence in a closed space. Longer discussions might be held in outside patio spaces, if feasible.
Important considerations in evaluating the safety of a situation include:
Ventilation: to have good air circulation.
Low volume: to minimize potential exposure to any infected individual.
Limited contact with any unknown individuals: any exposure longer than 15 minutes is considered sufficient to allow cross infection.
Physical distancing: especially important when talking, singing or shouting is occurring, which increases virus spread.
History reveals that we do indeed get through crises. After the influenza pandemic of 1918-1919, came the Roaring Twenties, an amazing and productive period.
My bottom line for the week is: Establish your own strategies for infection safety, and in parallel work to actively maintain your sanity. We are innovative and definitely capable of getting through this together.
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Dr. Brian G.M. Durie (1942-2025) was the co-founder of the IMF. He was a Professor of Medicine, Hematologist/Oncologist, and Honoree MD at the University of Brussels.