The California buckeye, Aesculus californica, begins to bloom in April or May, depending on location and on the duration of the winter rains. The tree is perhaps about ten to twelve feet tall when it grows in the full sun…
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Virology is the study of viruses, those troublesome microorganisms that can cause us harm as the causative agents of diseases such influenza and Human Immunodeficiency Virus (HIV). But on the flipside they also have positive uses in medicine, being used…
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Brucella abortus is the causative organism of the disease undulating fever or Brucellosis. This is a zoonotic infection with the bacterium caught from animal products. The bacterium is a gram-negative bacillus. The most common animal host of Brucella abortus is…
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Living cells are known as vegetative cells; the smallest unit of life that is like a tiny factory that is constantly working to live, grow and reproduce. But vegetative cells are vulnerable to damage from many environmental forces. A few…
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Chlamydophila psitacci is a bacterium that causes Psittacosis , commonly known as parrot fever, ornithosis or avian chlamydiosis It is aa bacterial infection that causes severe pneumonia in humans. The bacteria is transmitted from birds to humans by inhalation, contact…
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Bacteria are single-celled microorganisms that can come in a vast number of species and with a variety of lifestyles. Some of them are free living, not requiring other organisms for their survival, and existing in everything from the soil and…
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Borrelia Burgdorferi was discovered in 1982 by the scientist Willy Burgdorfer. Burgdorfer isolated the spirochetes that had caused the outbreak of rheumatoid arthritis in children in 1975 in the rural community of Lyme, Connecticut. He had found the bacteria that…
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Campylobacter jejuni is one of the leading causes of gastroenteritis, inflammation of the gastrointestinal (GI) tract, in humans, known as campylobacteriosis. Ingestion of C. jejuni is rarely life threatening, but it can lead to the development of Guillain-Barre syndrome (GBS)…
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A compound light microscope is a scientific tool typically used to look at very small living things, such as stained plant and animal cells, and even minute bacteria. This type of scope has a built in light source and two…
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Bordetella pertussis is the causative agent of the disease pertussis, better known as whooping cough. Pertussis is primarily a disease found in unimmunized children, although adults may contract the disease and subsequently spread the infection. Pertussis is a disease that…
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