Скачать или смотреть Streptococcal Infections | Microbiology

Streptococcal infections are very important to discuss, you will get to know the pathogenesis of Streptococcal infections, Streptococcus microbiology, and what diseases Streptococcus can cause.

▬ 📌 Streptococcal Infections
One of the most important characteristics for the identification of streptococci to understand streptococcus microbiology is the type of hemolysis:
🟡 Alpha-Hemolytic streptococci
🟡 Beta-Hemolytic streptococci
🟡 Gamma-hemolysis

▬ 📌 Streptococcal Infections: Alpha Glucose-Classification
Streptococci, it is classified into:
🔵 Beta-Hemolytic Streptococci
🔵 Beta-Non-Hemolytic Streptococci

▬ 📌 Streptococcal Infections: Diseases
There are various Streptococcal bacterial infections, Streptococcus pyogenes causes:
⚫️ Pharyngitis
⚫️ Impetigo
⚫️ Streptococcal toxic shock syndrome
⚫️ Rheumatic fever and Acute glomerulonephritis
⚫️ Skin Infection such as cellulitis.

Streptococcus agalactiae is the leading cause of:
🔵 Neonatal sepsis and meningitis

▬ 📌 Streptococcal Infections: Lab Diagnosis
Microbiologic lab diagnosis includes two tests:
🟣 Cultures of swabs
🟣 Bile-esculin agar

Serological lab diagnosis includes:
🟤 ASO titers

▬ 📌 Streptococcal Infections: Transmission
Most Streptococci are part of the normal flora of the human throat, skin, and intestines. But produce disease, when they gain access to tissues or blood, it means when they dislocate from their normal location then they act as a pathogen.

▬ 📌 Streptococcal Infections: Pathogenesis
Group A streptococci or streptococcus pyogenes cause disease by three mechanisms:
🟡 Pyogenic inflammation
🟡 Exotoxin production
🟡 Immunologic

▬ 📌 Streptococcal Infections: Treatment
Treatment options are as follows:

🟣 Group A streptococcal infections can be treated with either Penicillin G or Amoxicillin.
🟣 In mild group A streptococcal infections, Oral Penicillin V can be used.
🟣 In penicillin-allergic patients, Erythromycin or one of its long-acting derivatives, for example, azithromycin can be used.
🟣 Endocarditis caused by most viridans streptococci is curable by prolonged Penicillin G treatment.

▬ 📌 Streptococcal Infections: Preventions
Preventions for streptococcal infections are as follows:

🟠 Rheumatic fever can be prevented, by treatment of group A streptococcal pharyngitis with Penicillin.
🟠 Endocarditis caused by viridans streptococci can be prevented by using amoxicillin perioperatively.
🟠 If the patient is allergic to penicillin, either Cefazolin or Vancomycin can be used.
🟠 There are no vaccines available against any of the streptococci except S. pneumoniae.

This was all about Streptococcal Infections, to understand, types of hemolysis, groups of streptococci, its diseases with pathogenesis, transmission preventions, streptococcal glomerulonephritis pathophysiology and streptococcal AGN pathophysiology in detail, watch our video on Streptococcal Infections.

▬ 🎬 5500+ sqadia.com Medical Videos ▬▬▬▬▬▬▬▬▬▬
👩🏻‍⚕️ Accessible Medical Student Education 24/7/365
💡 Simplifying Medical Learning
💪 Study Hard, Dream Big, Achieve More