The most common fatal bacterial diseases are respiratory infections. Antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem.

Oct 10, 2025 · Bacteria are microscopic single-celled organisms that inhabit virtually all environments on Earth, including the bodies of multicellular animals. Bacteria lack a …

Bacterial infections are caused by harmful bacteria and can affect many parts of your body. They can be minor or serious and are often treated with antibiotics.

Aug 8, 2025 · In 1838, the German naturalist Christian Gottfried Ehrenberg called them ‘bacteria’, from the Greek word ‘baktḗria’, meaning ‘little stick’. Later, Robert Koch’s research, famously …

Bacteria are microbes with a much simpler cell structure than many other organisms, but they are by no means simple. The more scientists look, the more they understand about how complex …

Oct 19, 2023 · Bacteria are microscopic infectious agents that have a long history of infecting humans, but they also play a vital role in supporting human health.

The meaning of BACTERIAL is of, relating to, or caused by bacteria. How to use bacterial in a sentence.

Apr 18, 2025 · These tiny, single-celled organisms—bacteria—are among the most ancient, numerous, and influential forms of life on Earth. They are so small that millions can live in a …

Oct 20, 2025 · Bacteria are small single-celled organisms. Bacteria are found almost everywhere on Earth and are vital to the planet's ecosystems. Some species can live under extreme …

Oct 4, 2019 · Bacteria are single-celled microorganisms with prokaryotic cells, which are single cells that do not have organelles or a true nucleus and are less complex than eukaryotic cells. …