Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm counts and quality since the 1940s. A more recent study…
Tag: Infectious diseases
Cutting HIV aid means undercutting US foreign and economic interests − Nigeria shows the human costs
A little over two decades ago, addressing Nigeria’s HIV crisis topped U.S. President George W. Bush’s priorities. Africa’s most populous nation had 3.5 million HIV cases, and the disease threatened…
How the CDC’s Epidemic Intelligence Service protects public health at home and abroad
When the Trump administration announced in February 2025 that it was cutting 10% of staff at the Centers for Disease Control and Prevention, it seemed that a small but storied…
Bird flu could be on the cusp of transmitting between humans − but there are ways to slow down viral evolution
Disease forecasts are like weather forecasts: We cannot predict the finer details of a particular outbreak or a particular storm, but we can often identify when these threats are emerging…
Cuts to science research funding cut American lives short − federal support is essential for medical breakthroughs
Nearly every modern medical treatment can be traced to research funded by the National Institutes of Health: from over-the-counter and prescription medications that treat high cholesterol and pain to protection…
As tuberculosis cases rise in the US and worldwide, health officials puzzle over the resurgence of a disease once in decline
An outbreak of tuberculosis, or TB – a lung disease that is often accompanied by a hacking cough – began in January 2024 in Kansas City, Kansas, and two nearby…
US dodged a bird flu pandemic in 1957 thanks to eggs and dumb luck – with a new strain spreading fast, will Americans get lucky again?
In recent months, Americans looking for eggs have faced empty shelves in their grocery stores. The escalating threat of avian flu has forced farmers to kill millions of chickens to…
How does raw water compare to tap water? A microbiologist explains why the risks outweigh the benefits
Water that comes straight from natural sources, dubbed “raw water,” is gaining popularity. Raw water advocates reject public water supplies, including tap water, because they don’t enjoy the taste or…
Bird flu flares up again in Michigan poultry – an infectious disease expert explains the risk to humans, chickens, cows and other animals
After a relatively quiet fall, there’s been another spike in cases of bird flu in Michigan. When state officials announced on Dec. 16, 2024, that bird flu had been found…
Vaccine misinformation distorts science – a biochemist explains how RFK Jr. and his lawyer’s claims threaten public health
Vaccinations provide significant protection for the public against infectious diseases and substantially reduce health care costs. Therefore, it is noteworthy that President-elect Donald Trump wants Robert F. Kennedy Jr., a…
