The major diseases of a century ago reflect how far we have come in our scientific and medical knowledge. Since then, the landscape of human health has evolved significantly, shaped by advancements in science, medicine, and technology. In this article, we will journey through time to understand the major diseases humans faced a hundred years ago.

Infectious Diseases

One hundred years ago, infectious diseases were among the leading causes of death. These diseases were caused by pathogens such as bacteria, viruses, and parasites. Tuberculosis (TB), caused by the bacterium Mycobacterium tuberculosis, was a major global heal ...

Seeing through objects may seem like something straight out of a comic book, but researchers have found a way to make entire animals transparent – from their brains to their bones. The method lets fluorescent proteins visibly shine through bodies, lighting up entire vascular systems (above) and other structures.

To produce such light shows, researchers treat euthanized rodents with several organic solvents to remove the water and lipids that made them opaque. The technique is dubbed uDISCO because it’s a variant of the original DISCO technique, which stands for 3D imaging of solvent-cleared organs. This technique allows the highest resolution images yet for a whole body, its creators report online today in Nature Methods, and it can create ...