🦠MICROBIOLOGY🧬
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لعشاق الميكرو
قناة متخصصة بكل ماهو جديد في #علم_الاحياء_الدقيقة【بكتيريا ،فيروسات ،طفيليات ،فطريات】
📌قنواتنا الاخرى
@LabMed2016 ☜ الطب المخبري
@Hematologys ☜ علم الدم
@Biochem_Lab ☜الكيمياء السريرية
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ما تشاهده في الصورة 🔝ليس مزهرية 💐🌷🌻 ،او صورة لبستان اخذت من الاعلى ،لكنها عبارة عن مستعمرات نامية من مسحات اخذت من التربة ،

فا المستعمرات ذات اللون الاخضر الفاتح هي Aspergillus flavus

بينما الازرق المخضر هي فطر الpenicillium ،

بينما المستعمرات الورديه والحمراء هي خمائر وبكتيريا yeast/bacteria
والطبق المزرع عليه MDRB agar .

للانضمام لنا:👇
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@MicroMLS1
Kaplan Usmle Step 1 Lecture Notes 2020. Immunology and Microbiology. ^^ .pdf
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USMLE Step 1 Lecture Notes 2020 Immunology and Microbiology.pdf
41.4 MB
📘Kaplan Usmle Step 1 Lecture Notes 2020. Immunology and Microbiology. ^^ .pdf
كتاب جميل اهديه لكم
تحميل اجباري
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@MicroMLS1
📘microbial Growth
دراسه بكتيريا من طلاب الماجستير
🔝هديه القناة
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Bacterial Growth.pdf
3.6 MB
📘microbial Growth
دراسه بكتيريا من طلاب الماجستير
🔝هديه القناة
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Difference between Genotyping & Gene sequencing
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‌‎🎥
فيروس ( Bacteriophage) :

فيروس يهاجم الخلايا البكتيرية
بواسطة ذيله الممتد من جسمه،
وتنتقل مادة الـ DNA من الفيروس إلى الخلية البكتيرية ( E.coliI )،
التى تكون 100فاج جديد خلال 32 دقيقة من مهاجمة البكتيريا.

🌟👍
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Zika Virus infection (Animation video)
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محاضرة د.رؤى محمد السياغي استاذ الميكروبيولوجي المساعد-كلية الطب-جامعة صنعاء بعنوان
Dengue virus and the dangerous vaccine
Streptococcus pneumoniae

🔝Distinguishing Features
1- α hemolytic
2- Optochin sensitive
3- Lancet-shaped diplococci
4- Lysed by bile (bile soluble)
🔝Reservoir: human upper respiratory tract
🔝Transmission: respiratory droplets (not considered highly communicable often
colonize the nasopharynx without causing disease)
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@MicroMLS1
🧪Key Vignette Clues🕳

🔝Streptococcus pneumoniae
🧪Gram (+)
🧪catalase (−)
🧪α hemolytic
🧪soluble in bile
🧪optochin sensitive
🕳Pneumonia→ typical→ most common cause→ rusty sputum
🕳Meningitis→many PMNs
↓ glucose
↑ protein in CSF
most common adult
cause
Otitis media and sinusitis→most common cause
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🔬Predisposing Factors🤦‍♂
🤧Antecedent influenza or measles infection🦵
🥴Chronic obstructive pulmonary disease (COPD)
❤️Congestive heart failure (CHF)
Alcoholism
🩸🦠Asplenia predisposes to septicemia🩸🦠
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Pathogenesis
🕳Polysaccharide capsule is the major virulence factor
🕳IgA protease
🕳Teichoic acid
🩹Pneumolysin O: hemolysin/
cytolysin: damages respiratory epithelium inhibits
leukocyte respiratory burst and inhibits classical complement fixation
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@MicroMLS1
السلام عليكم ورحمه الله وبركاته
الاعضاء الكرام كلا باسمه وصفته
راح اضح حالتين للنقاش والتصويت والاجابه وقت عودتي اليكم مده غير محدوده قد تزيد عن يومين او تكون يومين
الحــــــــــــــالة الاولى
A 30-year-old woman presents to her gynecologist with complaints of vaginal itching
and a frothy, yellow discharge. She also complains of painful urination. She admits to
being sexually active with several men in the past two weeks. Cultures are negative
for bacterial growth, but organisms are visible via a wet prep on low power. The most likely causal agent is
118.

(A) Candida albicans
(B) Trichophyton rubrum
(C) Chlamydia trachomatis
(D) Trichomonas vaginalis
(E) Giardia lamblia
تصويت الحالــــــــــ الاولى ـــــــة بالتصويت
Anonymous Poll
24%
A
4%
B
13%
C
55%
D
4%
E
الحـــــــــ الثانية ـــــــــالة
Four weeks after his arrival from Egypt, a 24-year-old graduate student presents with
blood in his urine. Microscopic examination of his urine reveals the presence of eggs with terminal spines. In the interview he admits that he has been working on his
family’s rice field occasionally since his early childhood. The most likely etiologic
agent of his complaint is
(A) Entamoeba histolytica
(B) Fasciolopsis buski
(C) Schistosoma haematobium
(D) Schistosoma japonicum
(E) Schistosoma mansoni
تصويت الحـــــــــــــ الثانية ــــــــــالة
Anonymous Poll
11%
A
6%
B
68%
C
6%
D
9%
E
🦠MICROBIOLOGY🧬
الحــــــــــــــالة الاولى A 30-year-old woman presents to her gynecologist with complaints of vaginal itching and a frothy, yellow discharge. She also complains of painful urination. She admits to being sexually active with several men in the past two…
🔝Answer: D. The clues are frothy yellow discharge, itching, organisms identified on wet mount, bacterial cultures were negative
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🦠MICROBIOLOGY🧬
الحـــــــــ الثانية ـــــــــالة Four weeks after his arrival from Egypt, a 24-year-old graduate student presents with blood in his urine. Microscopic examination of his urine reveals the presence of eggs with terminal spines. In the interview he admits…
Answer Q2: C. The clues are Egypt
blood in urine eggs with terminal spines working in rice field (indicates his possible exposure to contaminated water)
Also be aware that in Africa S.haematobium is associated with bladder cancer Entamoeba histolytica
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