Infectious diseases are disorders that are caused by organisms, usually microscopic in size, such as bacteria, viruses, fungi, or parasites that are passed, directly or indirectly, from one person to ...

then all diseases … must rank far behind tuberculosis." By this measure, tuberculosis today still outranks most other infectious diseases for its sheer potential to affect vulnerable populations.

The epicenter of the outbreak, which began last January and was blamed for two deaths in 2024 ... to educate the public about tuberculosis, an infectious disease that is caused by bacteria ...

While malaria is the best-understood example of an infectious ... these diseases might include smallpox in ancient Europe and in Native American populations, as well as cholera, tuberculosis ...