1/ A common misconception: children need infections to build strong immune systems. Prof. Jörn Klein explains this is false. It's exposure to harmless microbes in nature – not illnesses like measles or flu – that truly strengthens immunity. #ChildHealth #ImmuneSystem
2/ The "hygiene hypothesis" is often misinterpreted. It's not about being "too clean," but a lack of diverse microbial exposure. Children thrive with a rich microbial life around them, from soil, animals & nature, which doesn't cause illness. #Microbiome #HealthyKids
3/ Historically, infections were the leading cause of child deaths. The dramatic decline in child mortality is thanks to improved hygiene, vaccination, and antibiotics, not children becoming "stronger" by getting sick. #PublicHealth #VaccinesWork
4/ Crucially, infections don't protect against allergies or autoimmune diseases. In fact, some viruses (like RSV & measles) can increase the risk of asthma, allergies, or even damage the immune system's memory, making kids more vulnerable. #InfectionPrevention #HealthFacts
5/ Frequent early infections pose unnecessary risks. Research shows each infection before age three can increase the need for antibiotics or risk of more severe illness later in life, particularly respiratory infections. #EarlyChildhood #ProtectKids
6/ And remember: clean air is vital! Protecting children from infections also means ensuring they breathe clean air, both indoors and out. Good ventilation & reducing pollution are key defenses for their developing lungs. #CleanAirNow #EnvironmentalHealth
7/ Vaccines offer a safe way to build immunity without the child getting sick. Healthcare professionals emphasize: children aren't stronger from illness, but from a safe, varied environment, good hygiene, infection control, and vaccination. #VaccineSafety #ParentingTips
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Every infection is an unnecessary risk. Children's immune systems are strengthened by growing up in a secure environment with contact with animals, nature, and other children – alongside protection through vaccination.
H/T @scott_squires for posters!
Part 2: Breaking the Loop – Far-UVC 222nm & Political Accountability. 6/ It’s not just about pollution; it's about what the air carries.
A new study (April 2026) in BMC Infectious Diseases highlights the ongoing risk of SARS-CoV-2 reinfections. #SafeSchools
7/ Every wave we ignore adds to the cumulative neurological damage. 📉⚠️
To break this cycle, we need more than just filters. We need Far-UVC (222nm).
8/ Unlike traditional UV, 222nm light is safe for human skin and eyes but lethal to airborne viruses. It provides continuous, real-time disinfection in occupied indoor spaces. 💡🛡️
Part 1: The Invisible Thief How Air Quality Shapes Our Brains We often think of air quality as a future problem. New research shows it’s an ongoing crisis for our brains from the womb to old age.
2/ The evidence is stacking up: clean air isn't just about breathing; it's about thinking.
A heartbreaking study in @Guardian reveals that babies exposed to air pollution during pregnancy take longer to learn to speak.
3/ We are literally handicapping the next generation before they even take their first breath. This is a public health failure that requires immediate intervention. 👶🚫
1/ We often hear the claim that children aren't affected by Long COVID or that it's extremely rare.
A new study published in @Nature (Scientific Reports) following children and adolescents through 2023 tells a different story. 🧵⬇️ #ChildHealth #SafeSchools #CleanAir
2/ The study found a Long COVID incidence rate of 8,5%.
That nearly 1 in 10 children suffering from persistent symptoms. This is not "pandemic stress"—it is a physiological consequence of the virus. 📉⚠️
3/ What are these children experiencing?
🚩 Chronic Fatigue
🚩 Respiratory issues (Dyspnea)
🚩 Persistent headaches
🚩 Cognitive impairment
These symptoms significantly impact their quality of life, school attendance, and ability to play sports. 🧠💔
1/ New evidence confirms that SARS-CoV-2 can reach the fetus through the amniotic fluid. This isn't just about maternal health; researchers have now detected the virus directly within fetal organs, including the lungs and intestines.
Here’s why this changes the conversation. ⬇️
2/ How does it happen? The study highlights "amniotic infection." When a pregnant person is infected, the virus can enter the amniotic fluid. As the fetus naturally swallows this fluid, the virus gains a direct pathway into the fetal digestive and respiratory systems. 💧🦠
3/ This isn't theoretical. Using advanced imaging and molecular testing, scientists found viral replication within fetal tissues. This proves that the fetus can face direct viral impact long before birth, potentially affecting organ development.
1/ The long term heart risks of C-19 💔 A massive new study in the European Heart Journal confirms what many feared: SARS-CoV-2 is not just a respiratory virus. It’s a long-term cardiovascular threat. The risk of major heart events remains elevated for years after infection.
2/ Here is what the data shows ⬇️
Researchers tracked over 10,000 individuals and found that a COVID-19 infection is associated with a significantly higher risk of MACE (Major Adverse Cardiovascular Events), including heart attack and stroke, for up to three years post-infection.
3/ Crucially, this risk isn't just for those who were severely ill. Even "mild" cases show an increased cardiovascular burden. The virus can cause persistent inflammation and vascular damage that doesn't simply disappear when the initial symptoms fade. 📉🩺
1/ New science from bioRxiv (10.64898/2025.12.31.697156) shows that asthma isn't just a "reaction"—it's a fundamental destruction of our airway's molecular program. Our lungs are being physically rewritten by chronic exposure. 🧵👇 The #LeonardiEffect is very real!
2/ Crucially, the study highlights how T-cells become dysfunctional and drive permanent scarring (remodeling). But there's more: research from MedUni Wien confirms that SARS-CoV-2 infections cause long-term damage to our entire immune system. 🫁⚠️
3/ The Vienna study shows that even mild infections can inhibit T-cell memory and significantly reduce immune cells in the blood for over 10 months. This means your body has a harder time fighting off common infections like Influenza A, Staph, or VZV.