https://padlet.com/ethancornwell1/ev6xhcwzpwne A focus on two distinct bacteria; Streptococcus pneumoniae and Capnocytophaga gingivalis. en-us 2020-03-07 16:52:43 UTC 2025-11-28 17:48:10 UTC hello@padlet.com https://padlet.net/icons/png/1f9e0.png ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456265087 In creation of this Padlet, I realized how interconnected various different bacteria are in maintaining homeostasis within the body.  Both of the bacteria I studied are considered opportunistic pathogens that react when their is an imbalance in oral microbiota.  The creation of the phylogenetic tree allowed me to appreciate how distantly bacterium can evolve.  The common ancestor that two bacteria share can still differ in many ways to the bacteria we see today.  It is important to study microbiology to understand how bacteria interact within our bodies so that we can develop treatments to counteract any pathogens we may encounter. Even if those pathogens are common residents within our oral microbiota.
Two PadletsI found interesting were [DJ Singh] and [Taylor Evans]]]> 2020-03-07 16:53:11 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456265087 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267396 Streptococcus pneumoniae is commonly known for its alpha/beta hemolytic activity. It is also a gram-positive bacterium.]]> 2020-03-07 17:03:42 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267396 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267418 Kingdom: Bacteria
Phylum: Firmicutes
Class: Bacilli
Order: Lactobacillales
Family: Streptococcaceae
Genus: Streptococcus
Species: S. pneumoniae]]> 2020-03-07 17:03:50 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267418 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267450 Often living asymptomatically in healthy individuals.  However, it is the main cause of pneumonia and meningitis in children and elderly.  Additionally, the bacterium can cause a number of other pneumoncoccal infections. [Link] ]]> 2020-03-07 17:03:59 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267450 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267467 By vaccination of children less than 2 years old with PCV7/PCV13 caused the incident rate of conjuctivitis to decline.  This reveals that pneumoccous-NTHi interaction has a large role to play in the infection process. Herd immunity is key in lowering rate of infection.]]> 2020-03-07 17:04:05 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267467 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267483 C. gingivalis is a gram negative bacteria that can typically be found in the oropharyngeal tract of most mammals. Often referred to as an opportunistic pathogen.
[Link to Wiki Article]]]> 2020-03-07 17:04:09 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267483 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267503 Capnocytophaga gingivalis and Strptococcus pneumoniae are distantly related.  The closest relative on this phylogenetic tree is Anaerococcus prevotii.]]> 2020-03-07 17:04:14 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267503 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267538 C. gingivalis is apart of the genus Capnocytophaga.  Interestingly, this genus varies immensely in shape and size, which is completely dependent on the strain.  This bacterium can cause a condition called alveolar bone loss, which can lead to complete tooth loss. [Link]]]> 2020-03-07 17:04:22 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267538 ethancornwell1 https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267554 Studies were done to determine if Acute Exacerbations of Chronic Pulmonary Disease (AE-COPD) had origins in the pathogenic bacteria that are located in dental plaque biofilms. The study concluded that biofilms do harbor bacteria that contribute to the cause of AE-COPD. C. gingivalis was one of these harbored bacteria within the biofilm.]]> 2020-03-07 17:04:27 UTC https://padlet.com/ethancornwell1/ev6xhcwzpwne/wish/456267554