What is the shape of Diplococcus pneumoniae?
Streptococcus pneumoniae is a gram-positive, α-hemolytic, lancet-shaped diplococcus and is bile soluble and optochin sensitive.
What diseases are caused by diplococci?
Bacteremia due to Diplococcus pneumoniae frequently occurs during the course of pneumococcal pneumonia, particularly when the infection is fulminating. Endocarditis, most commonly involving the aortic valve, may complicate pneumococcal pneumonia and is characterized by persistent pneumococcal bacteremia.
What disease does Diplococcus pneumoniae cause?
Pneumococcal disease is caused by bacteria called Streptococcus pneumoniae (pneumococcus). People with pneumococcal disease can spread the bacteria to others when they cough or sneeze. Symptoms of pneumococcal infection depend on the part of the body affected.
What are Diplococcus microorganisms?
Definition of diplococcus
: any of various encapsulated bacteria (such as Streptococcus pneumoniae, a common cause of pneumonia) that usually occur in pairs and that were formerly grouped in a single taxon (genus Diplococcus) but are now all assigned to other genera.
What are the characteristics of diplococci?
Essentially, diplococci bacteria (singular; diplococcus) are rounded/spherical bacteria that occur in pairs. Unlike staphylococci bacteria (which form grape-like clusters and are truly round), some may appear ovoid (elongated) or bean-shaped.
Who discovered Diplococcus pneumoniae?
Following its discovery in 1881 by both Pasteur and Sternberg and the demonstration by Fraenkel and Weichselbaum five years later that the Pneumococcus was the causative agent of lobar pneumonia in man, interest in this organism had centered on its pathogenic properties and on the defense of the host against them ( …
Where can diplococci be found?
Diplococci were found in the anaerobic cultures of 48 of 106 cerebrospinal fluids; also in the cerebrum, cerebellum) pons and medulla, cord, tonsils, lungs, liver, kidneys, spleen, pancreas, and mesenteric glands of fatal cases.
What are the 23 types of pneumococcal bacteria?
PPSV23 is composed of purified preparations of pneumococcal capsular polysaccharide from 23 types of pneumococci. The serotypes are: 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, and 33F. PPSV23 is administered by either intramuscular or subcutaneous injection.
What is gram-positive Diplococci?
Image 3 is a Gram stain made from a lower respiratory tract specimen. The gram-positive diplococci can be presumptively identified as Streptococcus pneumoniae.
What is the scientific name of diplococcus?
[dip″lo-kok´us] former name for a genus of bacteria of the tribe Streptococceae. D. pneumo´niae is now called Streptococcus pneumoniae.
What is the cause of diplococci?
Summary. Gonorrhea infection is a common STI caused by Neisseria gonorrhoeae, a gram-negative diplococcus bacterium that is closely related to other human Neisseria species. Men typically present with a urethral discharge; women are often asymptomatic, but may have vaginal discharge.
What does diplococci look like?
Are strain of Diplococcus pneumoniae is?
S. pneumoniae (also known as pneumococcus or Diplococcus pneumoniae) is the major cause of acute bacterial pneumonia and otitis media. S. pneumoniae is also a transient commensal, colonizing the throat and upper respiratory tract of 40% of humans.
What are 3 facts about pneumonia?
Here’s what you should know about this serious illness.
- The chances of getting pneumonia can be substantially reduced. Get a flu shot every year to help prevent seasonal influenza.
- Anyone can get pneumonia.
- Pneumonia can have more than 30 different causes.
- It can be deadly.
- Good health habits can fight pneumonia.
What is the first pneumonia vaccine?
In Depth. The Food and Drug Administration (FDA) licensed the first pneumococcal conjugate vaccine (PCV7 or Prevnar®) in 2000. That same year, the United States began using PCV7 routinely in children. It provided protection against infections caused by 7 types (serotypes) of pneumococcal bacteria.
Is diplococci Gram-negative or positive?
This genus is divided into 58 species and two subspecies. These gram-positive, coccoid bacteria were once thought to be harmless to the human body.
Is diplococci gram negative?
Examples of gram-negative pathogenic diplococci include N. gonorrhoeae and N. meningitidis.
What are the 5 types of pneumonia?
Pneumonia Types
- Types of Pneumonia.
- Walking Pneumonia.
- Viral Pneumonia.
- Bacterial Pneumonia.
- Chemical Pneumonia.
What are the 4 stages of pneumonia symptoms?
Stages of Pneumonia
- Stage 1: Congestion. During the congestion phase, the lungs become very heavy and congested due to infectious fluid that has accumulated in the air sacs.
- Stage 2: Red hepatization.
- Stage 3: Gray hepatization.
- Stage 4: Resolution.
Which pneumonia vaccine is best?
Studies showed PCV7 was highly effective in preventing invasive pneumococcal disease caused by serotypes included in the vaccine (vaccine serotypes) in young children. In 2010, FDA licensed PCV13, which provides protection against infections caused by 6 more serotypes than PCV7.
What is the new pneumonia vaccine?
In June 2021, the FDA approved Prevnar 20 (Pneumococcal 20-valent Conjugate Vaccine), a new vaccine for the prevention of invasive disease and pneumonia caused by 20 different types of the bacteria Streptococcus pneumoniae (pneumococcus).
What are the 3 stages of pneumonia?
Stage 1: Congestion. Stage 2: Red hepatization. Stage 3: Grey hepatization. Stage 4: Resolution.
What are the 3 major causes of pneumonia?
Viruses, bacteria, and fungi can all cause pneumonia.
What antibiotics treat pneumonia?
What is the first-line treatment for pneumonia? The first-line treatment for pneumonia in adults is macrolide antibiotics, like azithromycin or erythromycin. In children, the first-line treatment for bacterial pneumonia is typically amoxicillin.
What treatment is used for pneumonia?
The main treatment for pneumonia is antibiotics, along with rest and drinking plenty of water. If you have chest pain, you can take pain killers such as paracetamol. Treatment depends on how severe your pneumonia is. Treatment with antibiotics should be started as soon as possible after diagnosis.