BLOGS

 

Jason Carr

Passion for microscopy

Microscopy is exploration of the tiny microscopic world that exists all around us. From tiny gardens of exotic looking plants living in your fridge to deadly pathogens lurking in the soil and water, the view from the microscope opens a window into this hidden world. The existence of this microscopic world affects every aspect of our daily lives. From the yogurt in our fridge to the very existence of our humanity we humans owe our very lives to this microscopic world.

“If you don’t like bacteria, you’re on the wrong planet.”

― Stewart Brand

Cestoda (Cestoidea)

Cestoda (Cestoidea)

Aug 15th – Cestoda (Cestoidea) is a class of parasitic worms of the flatworm (Platyhelminthes) phylum. They are informally referred to as cestodes. The best-known …
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Trichomonas vaginalis

Trichomonas vaginalis

Aug 14th – Trichomonas vaginalis is an anaerobic, flagellated protozoan parasite and the causative agent of trichomoniasis. It is the most common pathogenic protozoan infection …
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Diphyllobothrium

Diphyllobothrium

Aug 13th – Diphyllobothrium is a genus of tapeworm which can cause diphyllobothriasis in humans through consumption of raw or undercooked fish. The principal species …
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Sarcocystis

Sarcocystis

Aug 12th – Sarcocystis is a protozoan genus of parasites, the majority of species infecting mammals, and some infecting reptiles and birds. The life-cycle of …
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Rhinosporidium seeberi

Rhinosporidium seeberi

Aug 11th – Rhinosporidium seeberi is a eukaryotic pathogen responsible for rhinosporidiosis, a disease which affects humans, horses, dogs, and to a lesser extent cattle, …
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Cryptosporidium

Cryptosporidium

Aug 9th – Cryptosporidium is a genus of apicomplexan parasitic alveolates that can cause a respiratory and gastrointestinal illness (cryptosporidiosis) that primarily involves watery diarrhea …
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Entamoeba histolytica

Entamoeba histolytica

Aug 8th – Entamoeba histolytica is an anaerobic parasitic amoebozoa, part of the genus Entamoeba. Predominantly infecting humans and other primates causing amoebiasis, E. histolytica …
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Naegleria fowleri

Naegleria fowleri

Aug 7th – Naegleria fowleri can cause an often lethal infection of the brain called naegleriasis (also known as primary amoebic meningoencephalitis (PAM), amoebic encephalitis/meningitis, …
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Balantidium coli

Balantidium coli

Aug 6th – Balantidium coli lives in the cecum and colon of humans, pigs, rats and other mammals. It is not readily transmissible from one …
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Balamuthia mandrillaris

Balamuthia mandrillaris

Aug 5th – Balamuthia mandrillaris is a free-living amoeba that is known to cause the deadly neurological condition known as granulomatous amoebic encephalitis (GAE). B. …
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Blastocystis

Blastocystis

Aug 4th – Blastocystis is a genus of single-celled heterokont parasites belonging to a group of organisms known as the Stramenopiles (also called Heterokonts) that …
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Dientamoeba fragilis

Dientamoeba fragilis

Aug 3rd – Dientamoeba fragilis is a species of single-celled excavates found in the gastrointestinal tract of some humans, pigs and gorillas. It causes gastrointestinal …
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Cystoisospora belli

Cystoisospora belli

Aug 2nd – Cystoisospora belli, previously known as Isospora belli, is a parasite that causes an intestinal disease known as cystoisosporiasis. This protozoan parasite is …
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Acanthamoeba

Acanthamoeba

August 1st – As summer comes to a close we will spend the next 31 days exploring the parasites that call our bodies home from …
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Wolbachia

Wolbachia

July 31st – Wolbachia is a genus of Gram-negative bacteria which infects arthropod species, including a high proportion of insects, but also some nematodes. It …
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Rothia Dentocariosa

Rothia Dentocariosa

July 30th – First isolated from dental caries, Rothia dentocariosa is largely benign, but does very rarely cause disease. The most common Rothia infection is …
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Pantoea

Pantoea

July 29th – Pantoea is a genus of Gram-negative bacteria of the family Enterobacteriaceae, recently separated from the Enterobacter genus. This genus includes at least …
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Enterobacter Cloacae

Enterobacter Cloacae

July 27th – Enterobacter cloacae is a clinically significant Gram-negative, facultatively-anaerobic, rod-shaped bacterium. Enterobacter cloacae is a member of the normal gut flora of many …
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Ehrlichia Chaffeensis

Ehrlichia Chaffeensis

July 26th – Ehrlichia chaffeensis is an obligate intracellular gram-negative species of rickettsiales bacteria. It is a zoonotic pathogen transmitted to humans by the lone …
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Coxiella Burneti

Coxiella Burneti

July 25th – Coxiella burnetii is an obligate intracellular bacterial pathogen, and is the causative agent of Q fever. The genus Coxiella is morphologically similar …
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Chlamydia Psittaci

Chlamydia Psittaci

July 24th – Chlamydia psittaci is a lethal intracellular bacterial species that may cause endemic avian chlamydiosis, epizootic outbreaks in mammals, and respiratory psittacosis in …
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Chlamydophila Pneumoniae

Chlamydophila Pneumoniae

July 23rd – Chlamydophila pneumoniae is a species of Chlamydophila, an obligate intracellular bacterium that infects humans and is a major cause of pneumonia. It …
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Campylobacter Coli

Campylobacter Coli

July 22nd – Campylobacter coli is a Gram-negative, microaerophilic, nonendospore-forming, S-shaped bacterial species within genus Campylobacter. At least a dozen species of Campylobacter have been …
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Klebsiella Granulomatis

Klebsiella Granulomatis

July 21st – Klebsiella granulomatis is Gram-negative, rod-shaped bacterium of the genus Klebsiella known to cause the sexually transmitted disease granuloma inguinale (or donovanosis). It …
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Bacillus Subtilis

Bacillus Subtilis

July 20th – Bacillus subtilis, known also as the hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium, found in soil and the gastrointestinal …
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Bartonella Quintana

Bartonella Quintana

July 19th – Bartonella quintana, originally known as Rochalimaea quintana, and “Rickettsia quintana”, is a microorganism transmitted by the human body louse. This microorganism is …
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Brucella Melitensis

Brucella Melitensis

July 18th – Brucella melitensis is a Gram-negative coccobacillus bacterium from the Brucellaceae family. The bacterium causes ovine brucellosis, along with Brucella ovis. It can …
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Bordetella Bronchiseptica

Bordetella Bronchiseptica

July 17th – Bordetella bronchiseptica is a small, Gram-negative, rod-shaped bacterium of the genus Bordetella. It can cause infectious bronchitis in dogs and other animals, …
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Bartonella Henselae

Bartonella Henselae

July 16th – Bartonella henselae, formerly Rochalimæa, is a proteobacterium that can cause bacteremia, endocarditis, bacillary angiomatosis, and peliosis hepatis. It is also the causative …
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Bacillus Mycoides

Bacillus Mycoides

July 15th – Bacillus mycoides is a gram-positive spore-forming bacterium of the genus Bacillus. Bacillus mycoides cells are usually larger than 3 micrometers, form chains …
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Geobacillus Stearothermophilus

Geobacillus Stearothermophilus

July 14th – Geobacillus stearothermophilus (basonym Bacillus stearothermophilus) is a rod-shaped, Gram-positive bacterium and a member of the division Firmicutes. The bacterium is a thermophile …
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Borrelia burgdorferi

Borrelia burgdorferi

July 13th – Borrelia burgdorferi is a bacterial species of the spirochete class of the genus Borrelia. B. burgdorferi exists in North America and Europe …
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Swine Brucellosis

Swine Brucellosis

July 12th – Swine brucellosis is a zoonosis affecting pigs, caused by the bacterium Brucella suis. The disease typically causes chronic inflammatory lesions in the …
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Bacillus Megaterium

Bacillus Megaterium

July 11th – Bacillus megaterium is a rod-like, Gram-positive, mainly aerobic spore forming bacterium found in widely diverse habitats. With a cell length of up …
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Bacillus licheniformis

Bacillus licheniformis

July 10th – Bacillus licheniformis is a bacterium commonly found in the soil. It is found on bird feathers, especially chest and back plumage, and …
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Brevibacillus brevis

Brevibacillus brevis

July 8th – Brevibacillus brevis is a Gram-positive, aerobic, spore-forming bacillus commonly found in soil, air, water, and decaying matter. It is rarely associated with …
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Azorhizobium caulinodans

Azorhizobium caulinodans

July 7th – Azorhizobium caulinodans is a species of bacteria that forms a nitrogen-fixing symbiosis with plants of the genus Sesbania. Little is known about …
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Anaplasma phagocytophilum

Anaplasma phagocytophilum

July 6th – Anaplasma phagocytophilum (formerly Ehrlichia phagocytophilum) is a gram-negative bacterium that is unusual in its tropism to neutrophils. It causes anaplasmosis in sheep …
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Agrobacterium tumefaciens

Agrobacterium tumefaciens

July 5th – Agrobacterium tumefaciens (updated scientific name Rhizobium radiobacter, synonym Agrobacterium radiobacter) is the causal agent of crown gall disease (the formation of tumours) …
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Acinetobacter baumannii

Acinetobacter baumannii

July 4th – Acinetobacter baumannii is a typically short, almost round, rod-shaped (coccobacillus) Gram-negative bacterium. It can be an opportunistic pathogen in humans, affecting people …
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Actinomyces israelii

Actinomyces israelii

July 3rd – Actinomyces israelii is a species of Gram-positive, rod-shaped bacteria within the Actinomyces. Known to live commensally on and within humans, A. israelii …
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Comamonas testosteroni

Comamonas testosteroni

July 2nd – Comamonas testosteroni is an aerobic, motile, non-spore-forming, medium-to-long gram-negative bacillus which occurs singly or in pairs and is known to use testosterone. …
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Pseudomonas aeruginosa

Pseudomonas aeruginosa

July 1st – Pseudomonas aeruginosa is a common Gram-negative, rod-shaped bacterium that can cause disease in plants and animals, including humans. A species of considerable …
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Dame Jane Morris Goodall

Dame Jane Morris Goodall

June 30th – Dame Jane Morris Goodall is a British primatologist, ethologist, anthropologist, and UN Messenger of Peace. Considered to be the world’s foremost expert …
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Gregor Johann Mendel

Gregor Johann Mendel

June 29th – Gregor Johann Mendel was a scientist, Augustinian friar and abbot of St. Thomas’ Abbey in Brno, Margraviate of Moravia. Mendel was born …
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Albrecht von Haller

Albrecht von Haller

June 28th – Albrecht von Haller was a Swiss anatomist, physiologist, naturalist and poet. A pupil of Herman Boerhaave, he is often referred to as …
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Ludwig Eduard Boltzmann

Ludwig Eduard Boltzmann

June 27th – Ludwig Eduard Boltzmann was an Austrian physicist and philosopher whose greatest achievement was in the development of statistical mechanics, which explains and …
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Nikola Tesla

Nikola Tesla

June 26th – Nikola Tesla was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist who is best known for his contributions to the …
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William Sanford Nye

William Sanford Nye

June 25th – William Sanford Nye, popularly known as Bill Nye the Science Guy, is an American science communicator, television presenter, and mechanical engineer. He …
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Claude Bernard

Claude Bernard

June 24th – Claude Bernard was a French physiologist. Historian Ierome Bernard Cohen of Harvard University called Bernard “one of the greatest of all men …
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James Clerk Maxwell

James Clerk Maxwell

June 23rd – James Clerk Maxwell FRS FRSE was a Scottish scientist in the field of mathematical physics. His most notable achievement was to formulate …
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Michael Faraday

Michael Faraday

June 21st – Michael Faraday FRS was an English scientist who contributed to the study of electromagnetism and electrochemistry. His main discoveries include the principles …
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Niels Henrik David Bohr

Niels Henrik David Bohr

June 20th – Niels Henrik David Bohr was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he …
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Ernest Rutherford

Ernest Rutherford

June 19th – Ernest Rutherford, 1st Baron Rutherford of Nelson, OM, FRS was a New Zealand-born British physicist who came to be known as the …
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Edwin Powell Hubble

Edwin Powell Hubble

June 18th – Edwin Powell Hubble was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology …
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Werner Karl Heisenberg

Werner Karl Heisenberg

June 17th – Werner Karl Heisenberg was a German theoretical physicist and one of the key pioneers of quantum mechanics. He published his work in …
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Neil deGrasse Tyson

Neil deGrasse Tyson

June 14th – Neil deGrasse Tyson is an American astrophysicist, author, and science communicator. Since 1996, he has been the Frederick P. Rose Director of …
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Galileo Galilei

Galileo Galilei

June 13th – Galileo Galilei was an Italian polymath: astronomer, physicist, engineer, philosopher, and mathematician. He played a major role in the scientific revolution of …
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Alan Mathison Turing

Alan Mathison Turing

June 12th – Alan Mathison Turing was an English computer scientist, mathematician, logician, cryptanalyst, philosopher and theoretical biologist. He was highly influential in the development …
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Helen Brooke Taussig

Helen Brooke Taussig

June 11th – Helen Brooke Taussig was born in Cambridge, Massachusetts on May 24, 1898 to Frank W. Taussig and Edith Thomas Guild, who had …
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Sir Alexander Fleming

Sir Alexander Fleming

June 10th – Sir Alexander Fleming was a Scottish biologist, pharmacologist and botanist. His best-known discoveries are the enzyme lysozyme in 1923 and the world’s …
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Marie Skłodowska Curie

Marie Skłodowska Curie

June 8th – Marie Skłodowska Curie born Maria Salomea Skłodowska was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She …
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Louis Pasteur

Louis Pasteur

June 7th – Louis Pasteur was a French biologist, microbiologist and chemist renowned for his discoveries of the principles of vaccination, microbial fermentation and pasteurization. …
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Sir Isaac Newton

Sir Isaac Newton

June 6th – Sir Isaac Newton was an English mathematician, astronomer, and physicist (described in his own day as a “natural philosopher”) who is widely …
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Carl Edward Sagan

Carl Edward Sagan

June 5th – Carl Edward Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. …
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Einstein

Einstein

June 4th – Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics …
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Rosalind Elsie Franklin

Rosalind Elsie Franklin

June 2nd – Rosalind Elsie Franklin was an English chemist and X-ray crystallographer who made contributions to the understanding of the molecular structures of DNA …
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Jonas Salk

Jonas Salk

A huge part of Microscopy is celebrating the men and women who make advances in the field of science everyday. The month of June is …
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Rouleaux

Rouleaux

May 31st – Rouleaux (singular is rouleau) are stacks or aggregations of red blood cells (RBCs) which form because of the unique discoid shape of …
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Basophilic Stippling

Basophilic Stippling

May 30th – Basophilic stippling a.k.a. punctate basophilia refers to observing a blood smear in which erythrocytes display small dots at the periphery. These dots …
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Cabot rings

Cabot rings

May 29th – Cabot rings appear as thin, red-violet-staining strands in the shape of rings, figure eights, or shapes of the letter B on Wright-stained …
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Heinz bodies

Heinz bodies

May 28th – Heinz bodies are formed by damage and denaturing to the hemoglobin component of red blood cells, most commonly by oxidative stress, but …
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Howell-Jolly bodies

Howell-Jolly bodies

May 27th – Howell-Jolly bodies are round, smooth, almost pyknotic, dark-purple bodies ranging in size from 0.5 to 1.0 micron in diameter. These RBC inclusions …
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Echinocyte

Echinocyte

May 26th – Echinocyte comes from the Greek word meaning “sea urchin,” which relates to its shell-like appearance. Echinocytes, more commonly referred to as burr …
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Acanthocyte

Acanthocyte

May 25th – Acanthocyte (from the Greek word acantha, meaning ‘thorn’), in biology and medicine, refers to a form of red blood cell that has …
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Schistocyte

Schistocyte

May 24th – A schistocyte or schizocyte (from Greek schistos for “divided” or schistein for “to split”, and kytos for “hollow” or “cell”) is a …
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Sickle-cell Anaemia (SCA)

Sickle-cell Anaemia (SCA)

May 23rd – Sickle-cell (drepanocytosis) anaemia (SCA) is a hereditary blood disorder, characterized by RBCs that assume an abnormal, rigid, sickle shape. Sickle cell anemia …
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Keratocytes

Keratocytes

May 22nd – Keratocytes are erythrocytes with a blister-like vesicle, which may rupture, leaving a “bite-shaped” defect in the cell outline or one or two …
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Stomatocytes

Stomatocytes

May 21st – Stomatocytes are erythrocytes with a slit-like central pallor, giving them the appearance of “coffee beans” or “kissing lips.” In three dimensions, the …
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Elliptocytes

Elliptocytes

May 20th – Elliptocytes, also known as ovalocytes, are abnormally shaped red blood cells that appear oval or elongated, from slightly egg-shaped to rod or …
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Dacrocyte

Dacrocyte

May 19th – A dacrocyte (or dacryocyte) is a type of poikilocyte that is shaped like a teardrop (a “teardrop cell”). A marked increase of …
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Spherocytosis

Spherocytosis

May 18th – Spherocytosis is an auto-hemolytic anemia (a disease of the blood) characterized by the production of spherocytes (red blood cells) or erythrocytes that …
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Codocytes

Codocytes

May 17th – Codocytes also known as target cells are red blood cells that have the appearance of a shooting target with a bullseye. In …
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Macrocytosis

Macrocytosis

May 16th – Macrocytosis is a term used to describe erythrocytes that are larger than normal, typically reported as mean cell volume (MCV) greater than …
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Microcytosis

Microcytosis

May 15th – Many people are unaware that red blood cells have different morphological appearances based on the way the patient presents. The next week …
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Cryptosporidium

Cryptosporidium

May 14th – Cryptosporidium infection begins when the one-celled cryptosporidium parasites get into your body through your mouth. Both the parasite and the disease are commonly …
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Corynebacterium Diphtheriae

Corynebacterium Diphtheriae

May 13th – Diphtheria is caused by Corynebacterium diphtheriae.  Corynebacterium diphtheriae is a Gram-positive, aerobic, nonmotile, toxin-producing, rod-shaped bacteria belonging to the order Actinomycetales, which …
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Human Polyomavirus

Human Polyomavirus

May 11th – In 1971, a human polyomavirus was discovered from the urine of a renal transplant recipient whose initials were B.K. This virus has …
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