The thing all five viruses have in common is they can cause mild to very severe liver damage.
Hepatitis A, B, C, D and E are very different viruses. Hepatitis A is genetically closer to the common cold than it is to hepatitis B. Hepatitis C is closer to the virus that causes dengue fever.
There are many reasons people have affairs.
An affair is generally a sign things aren't right with someone's relationship. It occurs when one person sees an alternative relationship as a better way to meet their needs than their existing one.
Most parents will tell you their kids love juice. It tastes good and often comes in convenient and child-friendly packaging. Is the occasional juice OK?
Could the sounds from our smartphones repel or attract mosquitoes?
Cameron Webb (NSW Health Pathology)
The sounds of mosquitoes may be annoying to many but tuning into their musical whines could help design new mosquito traps. Just don't expect sounds from your smartphone to protect you from bites!
Blood has always been a symbol of life and has been thought to counteract the ageing process.
Mai Lam/The Conversation NY-BD-CC
Recent scientific studies have claimed that transfusions of blood from teenagers can help delay or reverse the ageing process. Do they stack up?
When we get hot, sensors in the body tell the brain. The brain then tells the sweat glands to work, and we sweat.
Sweat comes from special parts in our skin called glands. You might be able to see them if you have a very strong magnifying glass.
Military working in the area where the poisoning took place wear protective clothing to reduce risk to their own health.
Even if they do eventually wake up, Sergei and Julia Skripal could suffer permanent damage as a result of their exposure to a Novichok nerve agent.
Children aged under two are at increased risk of meningococcal disease.
Meningococcal is a rare but very serious infection that can lead to blood poisoning and brain infection. But no single vaccine protects against all the strains.
A small number of people, who probably use other party drugs, use ketamine recreationally.
At higher doses ketamine is used to induce a trance-like state, sedate people with burns or other traumatic injuries, or as an anaesthetic to perform short operations.
Ten cases have been reported so far, including two deaths.
Shutterstock/Doug J Moore
Two people have died after eating rockmelon contaminated with listeria. A total of ten cases have been confirmed in NSW, Queensland and Victoria between Jan 17 and Feb 9, and more are expected.
Trachoma disappeared from most of Australia 100 years ago as individual and community hygiene improved.
Trachoma easily spreads from one child to another through infected eye and nose secretions. A person may have up to 40 episodes of reinfection during childhood.
Checkpoint blockade and adoptive immunotherapy are two examples of the fourth and newest pillar of cancer therapy.
New treatment options for cancer have flowed from our knowledge of how cells work, including the realisation the patient’s own immune system is a powerful agent in defeating cancer.
A floor price is a minimum amount under which alcohol can’t be sold.
International evidence shows minimum pricing policies can reduce alcohol-related harm. But a downside of the mechanism is that the extra money will go to industry rather than government.
Excessive weight gain during pregnancy increases the risks for mums and bubs.
Women who were a healthy weight before pregnancy should aim to gain between 11.5 and 16 kilograms during pregnancy.
Couples who are carriers of genes for recessive diseases don’t show any symptoms.
Photo by Drew Hays on Unsplash
Cystic fibrosis, spinal muscular atrophy and fragile X syndrome are serious diseases, and most couples carrying the genetic mutations for these don't know it. Should they all be tested?