Daily Disinfecting Won’t Weaken Kids’ Immune Systems, Experts Say
Cleaning has taken on a whole new meaning in Frank Mosco's household during the COVID-19 pandemic. There's a protocol for everything he and his two teenage daughters do.
Experts agree that over-disinfecting is better than inadequate disinfecting, especially during a pandemic.
"We wipe down every package that comes into the house and the items inside," says Mosco, a technologist and social justice activist in Hastings-on-Hudson, N.Y. "If it's a fruit or vegetable, I use vinegar and water, or water and soap. Then we throw out the boxes, clean up the table, and wash our hands." Only then do they put items away.
As the novel coronavirus continues to pose an invisible threat, parents of infants to adolescents are pondering how vigorously and frequently to clean and disinfect surfaces at home and apply hand sanitizer in public. They also fret over whether there can be too much of a good thing: Will making everything as seemingly germ-free as possible reduce immunity down the road?
Experts agree that over-disinfecting is better than inadequate disinfecting, especially during a pandemic. Every family should assess their particular risks. Factors to consider include pre-existing medical conditions, the number of people living in the same home, and whether anyone works in a hospital or other virus-prone environment, says Kari Debbink, assistant professor of biology at Bowie State University in Bowie, Maryland.
Constantly cleaning everything in sight isn't necessary, she explains, because coronavirus tends to spread mainly via immediate contact with respiratory droplets—catching it from surfaces is a less-likely scenario. The longer the virus stays on a surface, the less contagious it becomes.
Some parents worry that their children's growing bodies may become accustomed to an environment that is "too clean." Debbink, a virologist, offers a salient reminder: "The immune system comes into contact with many, many different antigens every day, and it is 'trained' from birth onwards to respond to pathogens. Doing a little more cleansing and disinfecting during the pandemic will not weaken the immune system."
Other experts agree. "There should be no negative outcome to properly washing your hands more frequently," says Stacey Schultz-Cherry, an infectious diseases specialist at St. Jude Children's Research Hospital in Memphis, Tennessee. "Even with enhanced disinfection, kids are still getting exposed to immune-boosting microbes from playing outside, having pets, etc."
"There's no reason why hand sanitizer would weaken anyone's immune system of any age."
Applying hand sanitizer consisting of at least 60 percent alcohol helps clean hands while outdoors, says Angela Rasmussen, associate research scientist and a virologist at Columbia University's Mailman School of Public Health in New York. "There's no reason why hand sanitizer would weaken anyone's immune system of any age," she adds, and recommends moisturizer so hands don't dry out from frequent use. Meanwhile, "cleaning and disinfecting at home also don't have an impact on antiviral immunity, in kids or adults."
With the coronavirus foremost in parents' minds, Patricia Garcia, a pediatric hospitalist, has fielded many questions about how thoroughly they should wipe, rub, scrub, or mop. As medical director of Connecticut Children's Healthy Homes Program in Hartford, which takes aim at toxins and other housing hazards, she reassures them with this mantra: "You're never going to get it perfectly sterilized, and that's okay."
To quell some of these concerns, in March the U.S. Environmental Protection Agency (EPA) released a list of products for household use. None of these products have been specifically tested against SARS-CoV-2, the novel coronavirus that causes COVID-19. But the agency expects these products to be effective because they have demonstrated efficacy against a different human coronavirus similar to SARS-CoV-2 or an even harder-to-kill virus.
Many products on the list contain isopropyl alcohol or hydrogen peroxide. "When using an EPA-registered disinfectant," the agency's website instructs, "follow the label directions for safe, effective use. Make sure to follow the contact time, which is the amount of time the surface should be visibly wet."
Bear in mind that not all cleaners actually disinfect, cautions Alan Woolf, a pediatrician at Boston Children's Hospital who directs its environmental health center and is a professor at Harvard Medical School. Some cleaners remove visible dirt, grease, and grime, but they don't kill viruses. Disinfectants by their nature inactivate both bacteria and viruses. "That's an important distinction," Woolf says.
Frequently touched surfaces—for instance, doorknobs, light switches, toilet-flushing levers, and countertops—should not only be cleaned, but also disinfected at least daily during a pandemic if someone in the household is sick. The objects one touches upon coming home are the ones most likely to become contaminated with viruses, experts say.
Before bringing items inside, "it might be good to clear off a counter space where they will be placed," says Debbink, the biology professor and virologist. "This way, they come into contact with as few items and surfaces as possible."
If space permits, another option would be to set aside nonperishable items. "I've heard of some families putting things in a 'mud room' and closing the door for 48 hours, some leaving things in their garage or car trunk," says Stephanie Holm, co-director of the Western States Pediatric Environmental Health Specialty Unit at the University of California, San Francisco. "Letting new purchases sit for 48 hours undisturbed would greatly reduce the number of viable viruses present."
Cleaning surfaces is recommended before disinfecting them. Holm suggests using unscented soap and microfiber cloths instead of paper towels, which can transmit bacteria and viruses from one area to another.
Soap has the power to eradicate viruses with at least 20 seconds of contact time. It attacks the coronavirus's protective coat, explains infectious diseases specialist Schultz-Cherry. "If you destroy the coat, the virus is no longer infectious. Influenza virus is also very sensitive to soap."
"The most important thing that parents should do for children's immune systems is make sure they are up to date on all their vaccines."
For cribs, toys, and other mouth-contact surfaces, sanitizing with soap and water, not disinfectants, is advisable, says pediatrician Woolf. Fresh fruits and vegetables also can be cleaned with soap, removing dirt and pesticide residue, he adds.
"Some parents are nervous about using disinfectant on toys, which is understandable, considering many toys end up in children's mouths, so soap and water can be an alternative," says pediatrician Garcia, who recommends using hot water.
While some toys can go in the washing machine and dryer or dishwasher, others need to be cleaned by hand, with dish soap or a delicate detergent, as indicated on their labels. But toys with electrical components cannot be submerged in water, in which case consulting the EPA's list of disinfectants may be a parent's best option, she says.
Labels on the back of cleaning and disinfecting products also contain specific instructions. Not allowing a liquid to sit on a surface for the recommended time results in exposure to chemicals without even accomplishing the intended purpose of disinfection. For most household bleach-containing agents, the advisable "dwell time" is 10 minutes. "Many people don't realize this," says Holm, the environmental health specialist who also trained as a physician.
Beware of combining any type of cleaners or disinfectants that aren't already premixed. Doing so can release harmful gases into the air, she cautions.
During the pandemic, Mosco and his daughters have been very conscientious about decontaminating whatever comes through their doors. Mosco says he doesn't believe the family is overusing cleaning and disinfecting products. Although he's fastidious, he says, "a completely sterile environment is not the goal."
His mother, who was a nurse, instilled in him that exposure to some bacteria is a good thing. In turn, he "always encouraged his kids to play with animals, and to have fun in sand and dirt, with plenty of sunlight to keep their immune systems strong."
Even though a vaccine for coronavirus currently doesn't exist, parents can take some comfort in the best weapon available today to protect kids from deadly pathogens: "The most important thing that parents should do for children's immune systems," says virologist Rasmussen, "is make sure they are up to date on all their vaccines."
Niklas Anzinger is the founder of Infinita VC based in the charter city of Prospera in Honduras. Infinita focuses on a new trend of charter cities and other forms of alternative jurisdictions. Healso hosts a podcast about how to accelerate the future by unblocking “stranded technologies”.This spring he was a part of the network city experiment Zuzalu spearheaded by Ethereum founder Vitalik Buterin where a few hundred invited guests from the spheres of longevity, biotechnology, crypto, artificial intelligence and investment came together to form a two-monthlong community. It has been described as the world’s first pop-up city. Every morning Vitalians would descend on a long breakfast—the menu had been carefully designed by famed radical longevity self-experimenter Bryan Johnson—and there is where I first met Anzinger who told me about Prospera. Intrigued to say the least, I caught up with him later the same week and the following is a record of our conversation.
Q. We are sitting here in the so-called pop-up network state Zuzalu temporarily realized in the village of Lusticia Bay by the beautiful Mediterranean Sea. To me this is an entirely new concept: What is a network state?
A. A network state is a highly aligned online community that has a level of in-person civility; it crowd-funds territory, and it eventually seeks diplomatic recognition. In a way it's about starting a new country. The term was coined by the crypto influencer and former CTO of Coinbase Balaji Srinivasan in a book by the same title last year [2022]. What many people don't know is that it is a more recent addition or innovation in a space called competitive governance. The idea is that you have multiple jurisdictions competing to provide you services as a customer. When you have competition among governments or government service providers, these entities are forced to provide you with a better service instead of the often worse service at higher prices or higher taxes that we're currently getting. The idea went from seasteading, which was hardly feasible because of costs, to charter cities getting public/private partnerships with existing governments and a level of legal autonomy, to special economic zones, to now network states.
Q. How do network states compare to charter cities and similar jurisdictions?
A. Charter cities and special economic zones were legal forks from other existing states. Dubai, Shenzhen in China, to some degree Hong Kong, to some degree Singapore are some examples. There's a host of other charter cities, one of which I'm based in myself, which is Prospera located in Honduras on the island Roatán. Charter cities provide the full stack of governance; they provide new laws and regulations, business registration, tax codes and governance services, Estonia style: you log on to the government platform and you get services as a citizen.
When conceptualizing network states, Balagi Srinivasan turns the idea of a charter city a bit on its head: he doesn't want to start with this full stack because it's still very hard to get these kinds of partnerships with government. It's very expensive and requires lots of experience and lots of social capital. He is saying that network states could instead start as an online community. They could have a level of alignment where they trade with each other; they have their own economy; they meet in person in regular gatherings like we're doing here in Zuzulu for two months, and then they negotiate with existing governments or host cities to get a certain degree of legal autonomy that is centered around a moral innovation. So, his idea is: don't focus on building a completely new country or city; focus on a moral innovation.
Q. What would be an example of such a moral innovation?
A. An example would be longevity—life is good; death is bad—let's see what we can do to foster progress around that moral innovation and see how we can get legal forks from the existing system that allow us to accelerate progress in that area. There is an increasing realization in the science that there are hallmarks of aging and that aging is a cause of other diseases like cancer, ALS or Alzheimer's. But aging is not recognized as a disease by the FDA in the United States and in most countries around the world, so it's very hard to get scientific funding for biotechnology that would attack the hallmarks of aging and allow us potentially to reverse aging and extend life. This is a significant shortcoming of existing government systems that groups such as the ones that have come together here in Montenegro are now seeking alternatives too. Charter cities and now network states are such alternatives.
Q. Would it not be better to work within the current systems, and try to improve them, rather than abandon them for new experimental jurisdictions?
A. There are numerous failures of public policies. These failures are hard, if not impossible, to reverse, because as soon as you have these policies, you have entrenched interests who benefit from the regulations. The only way to disrupt incumbent industries is with start-ups, but the way the system is set up makes it excessively hard for such start-ups to become big companies. In fact, larger companies are weaponizing the legal system against small companies, because they can afford the lawyers and the fixed cost of compliance.
I don't believe that our institutions in many developed countries are beyond hope. I just think it's easier to change them if you could point at successful examples. ‘Hey, this country or this zone is already doing it very successfully’; if they can extend people’s lifespan by 10 years, if they can reduce maternal mortality, and if they have a massive medical tourism where people come back healthier, then that is just very embarrassing for the FDA.
Q. Perhaps a comparison here would be the relationship between Hong Kong and China?
A. Correct, so having Hong Kong right in front of your door … ‘Hey, this capitalism thing seems to work, why don't we try it here?’ It was due to the very bold leadership by Deng Xiaoping that they experimented with it in the development zone of Shenzhen. It worked really well and then they expanded with more special economic zones that also worked.
Próspera is a private city and special economic zone on the island of Roatán in the Central American state of Honduras.
Q. Tell us about Prospera, the charter city in Honduras, that you are intimately connected with.
A. Honduras is a very poor country. It has a lot of crime, never had a single VC investment, and has a GDP per capita of 2,000 per year. Honduras has suffered tremendously. The goal of these special economic zones is to bring in economic development. That's their sole purpose. It's a homegrown innovation from Honduras that started in 2009 with a very forward-thinking statesman, Octavio Sanchez, who was the chief of staff to the president of Honduras, and then president. He had his own ideas about making Honduras a more decentralized system, where more of the power lies in the municipalities.
Inspired by the ideas of Nobel laureate economist Paul Romer, who gave a famous Ted Talk in 2009 about charter cities, Sanchez initiated a process that lasted for years and eventually led to the creation of a special economic zone legal regime that’s anchored in the Hunduran constitution that provides the highest legal autonomy in the world to these zones. There are today three special economic zones approved by the Honduran government: Prospera, Ciudad Morazan and Orchidea.
Q. How did you become interested and then involved in Prospera?
A. I read about it first in an article by Scott Alexander, a famous rationalist blogger, who wrote a very long article about Prospera, and I thought, this is amazing! Then I came to Prospera and I found it to be one of the most if not the most exciting project in the world going on right now and that it also opened my heart to the country and its people. Most of my friends there are Honduran, they have been working on this for 10 or more years. They want to remake Honduras and put it on the map as the place in the world where this legal and governance innovation started.
Q. To what extent is Prospera autonomous relative to the Honduran government?
A. What's interesting about the Honduran model is that it's anchored within the Honduran constitution, and it has a very clear framework for what's possible and what's not possible, and what's possible ensures the highest degree of legal autonomy anywhere seen in the world. Prospera has really pushed the model furthest in creating a common law-based polycentric legal system. The idea is that you don't have a legislature, instead you have common law and it's based on the best practice common law principles that a legal scholar named Tom W. Bell created.
One of the core ideas is that as a business you're not obligated to follow one regulatory monopoly like the FDA. You have regulatory flexibility so you can choose what you're regulated under. So, you can say: ‘if I do a medical clinic, I do it under Norwegian law here’. And you even have the possibility to amend it a bit. You're still required to have liability insurance, and have to agree to binding arbitration in case there's a legal dispute. And your insurance has to approve you. So, under that model the insurance becomes the regulator and they regulate through prices. The limiting factor is criminal law; Honduran criminal law fully applies. So does immigration law. And we pay taxes.
Q. Is there also an idea of creating a kind of healthy living there, and encourage medical tourism?
A. Yes, we specifically look for legal advantages in autonomy around creating new drugs, doing clinical trials, doing self-medication and experimentation. There is a stem cell clinic here and they're doing clinical trials. The island of Roatán is very easily accessible for American tourists. It's a beautiful island, and it's for regulatory reasons hard to do stem cell therapies in the United States, so they're flying in patients from the United States. Most of them are very savvy and often have PhDs in biotech and are able to assess the risk for themselves of taking drugs and doing clinical trials. We're also going to get a wellness center, and there have been ideas around establishing a peptide clinic and a compound pharmacy and things like that. We are developing a healthcare ecosystem.
Q. This kind of experimental tourism raises some ethical issues. What happens if patients are harmed? And what are the moral implications for society of these new treatments?
A. As a moral principle we believe in medical freedom: people have rights over their bodies, even at the (informed) risk of harm to themselves if no unconsenting third-parties are harmed; this is a fundamental right currently not protected effectively.
What we do differently is not changing ethical norms around safety and efficacy, we’re just changing the institutional setup. Instead of one centralized bureaucracy, like the FDA, we have regulatory pluralism that allows different providers of safety and efficacy to compete under market rules. Like under any legal system, common law in Prospera punishes malpractice, fraud, murder etc. This system will still produce safe and effective drugs, and it will still work with common sense legal notions like informed consent and liability for harm. There are regulations for medical practice, there is liability insurance and things like that. It will just do so more efficiently than the current way of doing things (unless it won’t, in which case it will change and evolve – or fail).
A direct moral benefit ´to what we do is that we increase accessibility. Typical gene therapies on the market cost $1 million dollars in the US. The gene therapy developed in Prospera costs $25,000. As to concern about whether such treatments are problematic, we do not share this perspective. We are for advancing science responsibly and we believe that both individuals and society stand to gain from improving the resiliency of the human body through advanced biotechnology.
Q. How does Prospera relate to the local Honduran population?
A. I think it's very important that our projects deliver local benefits and that they're well anchored in local communities. Because when you go to a new place, you're seen as a foreigner, and you're seen as potentially a danger or a threat. The most important thing for Prospera and Ciudad Morazan is to show we're creating jobs; we're creating employment; we're improving people's lives on the ground. Prospera is directly and indirectly employing 1,100 people. More than 2/3 of the people who are working for Prospera are Honduran. It has a lot of local service workers from the island, and it has educated Hondurans from the mainland for whom it's an alternative to going to the United States.
Q. What makes a good Prosperian citizen?
A. People in Prospera are very entrepreneurial. They're opening companies on a small scale. For example, Vehinia, who is the cook in the kitchen at Prospera, she's from the neighboring village and she started an NGO that is now funding a school where children from the local village can go to instead of a school that's 45 minutes away. There's very much a spirit of ‘let's exchange and trade with each other’. Some people might see that as a bit too commercial, but that's something about the culture that people accept and that people see as a good thing.
Q. Five years from now, if everything goes well, what do we see in Prospera?
A. I think Prospera will have at least 10,000 residents and I think Honduras hopefully will have more zones. There could be zones with a thriving industrial sector and sort of a labor-intensive economy and some that are very strong in pharmaceuticals, there could also be other zones for synthetic biology, and other zones focused on agriculture. The zones of Prospera, Ciudad Morazan and Orchidea are already showing the results we want to see, the results that we will eventually be measured by, and I'm tremendously excited about Honduras.
How to Measure Your Stress, with Dr. Rosalind Picard
Today’s podcast guest is Rosalind Picard, a researcher, inventor named on over 100 patents, entrepreneur, author, professor and engineer. When it comes to the science related to endowing computer software with emotional intelligence, she wrote the book. It’s published by MIT Press and called Affective Computing.
Dr. Picard is founder and director of the MIT Media Lab’s Affective Computing Research Group. Her research and engineering contributions have been recognized internationally. For example, she received the 2022 International Lombardy Prize for Computer Science Research, considered by many to be the Nobel prize in computer science.
Through her research and companies, Dr. Picard has developed wearable sensors, algorithms and systems for sensing, recognizing and responding to information about human emotion. Her products are focused on using fitness trackers to advance clinical quality treatments for a range of conditions.
Meanwhile, in just the past few years, numerous fitness tracking companies have released products with their own stress sensors and systems. You may have heard about Fitbit’s Stress Management Score, or Whoop’s Stress Monitor – these features and apps measure things like your heart rhythm and a certain type of invisible sweat to identify stress. They’re designed to raise awareness about forms of stress such as anxieties and anger, and suggest strategies like meditation to relax in real time when stress occurs.
But how well do these off-the-shelf gadgets work? There’s no one more knowledgeable and experienced than Rosalind Picard to explain the science behind these stress features, what they do exactly, how they might be able to help us, and their current shortcomings.
Dr. Picard is a member of the National Academy of Engineering and a Fellow of the National Academy of Inventors, and a popular speaker who’s given over a hundred invited keynote talks and a TED talk with over 2 million views. She holds a Bachelors in Electrical Engineering from Georgia Tech, and Masters and Doctorate degrees in Electrical Engineering and Computer Science from MIT. She lives in Newton, Massachusetts with her husband, where they’ve raised three sons.
In our conversation, we discuss stress scores on fitness trackers to improve well-being. She describes the difference between commercial products that might help people become more mindful of their health and products that are FDA approved and really capable of advancing the science. We also talk about several fascinating findings and concepts discovered in Dr. Picard’s lab including the multiple arousal theory, a phenomenon you’ll want to hear about. And we explore the complexity of stress, one reason it’s so tough to measure. For example, many forms of stress are actually good for us. Can fitness trackers tell the difference between stress that’s healthy and unhealthy?
Show links:
- Dr. Picard’s book, Affective Computing
- Dr. Picard’s bio
- Dr. Picard on Twitter
- Dr. Picard’s company, Empatica - https://www.empatica.com/ - The FDA-cleared Empatica Health Monitoring Platform provides accurate, continuous health insights for researchers and clinicians, collected in the real world
- Empatica Twitter
- Dr. Picard and her team have published hundreds of peer-reviewed articles across AI, Machine Learning, Affective Computing, Digital Health, and Human-computer interaction.
- Dr. Picard’s TED talk
Rosalind Picard