Waluh, a one-day-old male baby pygmy hippopotamus (Cheropsis libereensis), swims with his mother.
Why are some animals resistant to waterborne disease? A reader wants to know.
Awareness and knowledge about rabies at a local level is key. This can help prevent bites and encourage people to get post-exposure treatment.
The strategy to eliminate human rabies is straight forward: vaccinate dogs, provide prompt post-exposure vaccines, public education and awareness on prevention.
Discarded used hypodermic needles along the Merrimack River in Lowell, Massachusetts.
Charles Krupa/AP Photos
HIV, STIs and other dangerous infections are feeding off of the opioid epidemic, creating an even more complicated threat to public health.
Bacteria cultured from a sample of air in a public building.
When jetting off on holiday, we rarely give a second thought to what microbes we might be taking with us. But humans spread trillions of bacteria around the globe, potentially harming ecosystems' balance.
Feral pigs are found in every state and territory in Australia.
Swine brucellosis is spreading from Queensland into New South Wales. It's carried by feral pigs and poses a real risk the people and dogs that hunt them.
Those keypads are teeming with microbes.
AP Photo/Charlie Riedel
What's on your cash? Studies show our money carries everything from pet DNA and old food to E.coli and traces of cocaine.
Biologists only really started to use maths in the last few decades.
Under pressure to create new markets, big alcohol producers are scouring the African continent in what promises to yield negative socioeconomic consequences.
What does dementia feel like?
Activists form a red ribbon, the symbol of the worldwide campaign against AIDS in Russia, 2010.
In Russia, social networks have given a new life to the conspiracy theory that HIV-AIDS is a global hoax.
Studies show wifi, mobile phones and other sources of electromagnetic radiation don’t make us sick. So, why are some people convinced they’re electrosensitive?
Studies suggest electrosensitivity is a "communicated" disease, spread by people hearing about the alleged dangers, and sometimes worrying themselves sick.
DNA holds the secrets of human existence, and studying rare diseases can reveal some of these facts of life.
Rare diseases may only affect a handful of people but their treatment benefits everyone.
Genomes can reveal a lot about disease risk. But people need to think carefully about what they want to know.
Cupid shoots an arrow in the 'Roman de la Rose'. 14th century, MS NLW 5016 // Wikimedia Commons
Lettuce leaves and purgatives might ease your aching heart.
Bacteria are single-celled organisms but you'd be fooled to think they weren't also hugely complex.
We shouldn't scoff at the Facebook founder's goal of eradicating disease.
Huge swathes of Tasmania have burned this year.
Warren Frey/Tasmania Fire Service
A comprehensive analysis of Tasmania's natural disaster risks has identified bushfire as the biggest threat, alongside emerging issues such as disease epidemics and heatwaves.
It is an illness that runs in families – but there are other factors which go beyond inheritance.
The earliest hominin cancer.
Patrick Randolph-Quinney (University of Central Lancashire/University of the Witwatersrand)
Cancer is not the modern disease many believe it to be. New fossil evidence from two South African caves suggests that its origins lie deep in prehistory.
We’ve long heard we can’t blame people for their addiction because it’s a disease, but is it?
Some think labelling it a disease is a helpful way to think about addiction; others think this makes the addict helpless in their fight against addiction. Two academics debate both sides of the coin.