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"Germ" refers not just to bacteria but to any type of microorganism, such as protists or fungi, or other pathogens, including parasites, viruses, prions, or viroids. [1] Diseases caused by pathogens are called infectious diseases. Even when a pathogen is the principal cause of a disease, environmental and hereditary factors often influence the ...
Bacterial diseases – diseases caused by bacteria. Bacteriology – study of bacteria, their characteristics, growth, and role in infectious diseases. Viruses - microscopic pathogens consisting of genetic material surrounded by a protein coat, requiring living cells of host organisms to replicate. [1] Viral disease – diseases caused by viruses.
These economic and technological advantages eventually enabled Europeans to conquer the peoples of the other continents in recent centuries by using guns and steel, particularly after the devastation of native populations by the epidemic diseases from germs. Eurasia's dense populations, high levels of trade, and living in close proximity to ...
Eurasia (/ j ʊəˈr eɪ ʒ ə / yoor-AY-zhə, also UK: /-ʃ ə /-shə) is the largest continental area on Earth, comprising all of Europe and Asia. [ 3 ] [ 4 ] According to some geographers, physiographically , Eurasia is a single supercontinent . [ 4 ]
Bacteriology is the study of bacteria and their relation to medicine. Bacteriology evolved from physicians needing to apply the germ theory to address the concerns relating to disease spreading in hospitals the 19th century. [5] Identification and characterizing of bacteria being associated to diseases led to advances in pathogenic bacteriology.
Gamma phage, an example of virus particles (visualised by electron microscopy) Virology is the scientific study of biological viruses.It is a subfield of microbiology that focuses on their detection, structure, classification and evolution, their methods of infection and exploitation of host cells for reproduction, their interaction with host organism physiology and immunity, the diseases they ...
The formation of a new “supercontinent” could wipe out humans and all other mammals still alive in 250 million years, researchers have predicted.
Bacteria also live in mutualistic, commensal and parasitic relationships with plants and animals. Most bacteria have not been characterised and there are many species that cannot be grown in the laboratory. The study of bacteria is known as bacteriology, a branch of microbiology.