Public health & disease

From disease eradication efforts to advances in vaccination and maternal health, this archive tracks real progress in public health. Stories here focus on what’s working — policies, interventions, and research that are improving and extending lives around the world.

Black baby boy, for article on mother-to-child HIV transmission

Botswana reduces mother-baby HIV transmission rates from 40% to below 1% since 1999

By / / Good News For Humankind

Mother-to-child HIV transmission in Botswana has plummeted from 40% in 1999 to below 1% today, with seven health districts recording zero cases in 2021. The country built its success on three simple pillars — free testing, free antiretroviral treatment, and community health workers who visit pregnant women at home to walk them through the process. Nearly every pregnant woman with HIV now receives treatment, up from just 27% two decades ago. In December 2021, Botswana became the first high-burden country to earn the WHO’s silver tier recognition for this work. It’s a powerful blueprint for the rest of sub-Saharan Africa: when care is free, trusted, and close to home, an AIDS-free generation moves within reach.

Airplane taking off against sunset, for article on Schiphol flight cap

In world first, The Netherlands caps flights at major airport to cut pollution

By / / Good News For Humankind

Flight caps at major airports are now a reality, and the Netherlands just proved a democratic government can make it happen. By hard-capping annual flights at Schiphol — Europe’s third-busiest airport — Dutch leaders treated aviation the same way they’d treat any polluting industry: subject to real environmental limits, not just cleaner-technology promises. Climate researchers say that curbing flight numbers, alongside greener fuels, is genuinely necessary to meet Paris Agreement goals. Greenpeace called the decision a historic breakthrough, and it’s easy to see why — other governments now have a working model to follow.

Person with alopecia, for article on alopecia areata treatment

U.S. FDA approves first alopecia drug that restores hair growth in many patients

By / / Good News For Humankind

Alopecia areata has affected roughly 7 million Americans without a single FDA-approved systemic treatment — until now. Baricitinib works by blocking the inflammatory signals that cause the immune system to attack hair follicles, giving them a chance to recover. In clinical trials, one in three patients with severe cases regrew enough hair to cover at least 80% of their scalp. Approval also unlocks insurance coverage, turning a once-inaccessible therapy into a realistic option. This breakthrough shows how a single curious clinician, one patient, and a decade of persistence can rewrite what medicine believes is possible.

Vancouver at sunset, for article on drug decriminalization

British Columbia becomes first Canadian province to remove criminal penalties for possession of some hard drugs

By / / Good News For Humankind

British Columbia’s decision to decriminalize personal drug possession is one of the most significant public health pivots in Canadian history — replacing arrest with a referral to care for adults carrying small amounts of certain substances. Fear of police kept people from calling for help during overdoses, pushing drug use away from life-saving services. Evidence from Portugal and other jurisdictions suggests decriminalization paired with strong health supports can reduce overdose deaths — and a major province choosing this path adds real momentum to treating addiction as a health issue, not a crime.

Vials of blood, for article on cancer diagnostics Africa, for article on Parkinson's blood test

First-of-a-kind blood test paves way for early Parkinson’s diagnosis

By / / Good News For Humankind

A simple blood test that could catch Parkinson’s disease before symptoms take hold is now closer to reality. Researchers at Kobe University developed an assay that reads changes in enzyme activity in a blood sample, achieving 85 to 88 percent accuracy in both human and rat models. Because treatments like levodopa and exercise work better early in the disease’s progression, earlier detection could meaningfully change what’s possible for patients. With Parkinson’s cases more than doubling globally over the past 25 years, affordable, scalable screening tools like this one could reshape how the world responds to the fastest-growing neurological disorder.