Dr. Ahmed Erdogan

19/05/2026

Celebrating my 1st year on Facebook. Thank you for your continuing support. I could never have made it without you. 🙏🤗🎉

19/05/2026

Differential diagnosis of Ebola virus.

“Other viral haemorrhagic fevers, malaria, typhoid, cholera, or meningitis”.

Prevention

“Ebola vaccine, coordinated medical services, careful handling of bushmeat”

Treatment
☑️ supportive care

Medication
☑️ Atoltivimab
☑️maftivimab
☑️odesivimab (INMAZEB)

Prognosis
25-90% mortality.

By:- Dr.Ahmed Erdogan.

19/05/2026

Ebola virus disease (EVD) is a rare, severe, and frequently fatal viral hemorrhagic fever caused by Ebolavirus species. Endemic to sub-Saharan Africa, it has an average mortality rate of 50%, though specific strains can be deadly in up to 90% of cases.

Transmission & Incubation

Source:
Transmitted to humans from infected animals (typically fruit bats or non-human primates) via handling or consuming raw bushmeat.

Spread:
Human-to-human transmission occurs through direct contact with blood or bodily fluids (e.g., saliva, sweat, vomit, f***s) of infected individuals or contaminated surfaces.

Incubation Period: Symptoms generally appear 2-21 days after exposure (typically 8-10 days).

Symptoms

Illness usually begins with sudden flu-like constitutional symptoms and rapidly escalates.

Initial:
High fever, severe headache, muscle and joint pain, fatigue, and weakness.

Advanced:
Nausea, vomiting, diarrhea, stomach pain, and unexplained bleeding or bruising.

Treatment & PreventionCare:
Treatment primarily relies on early, aggressive supportive care, including rehydration, managing vital functions, and treating concurrent infections.

Vaccines & Therapeutics:
An FDA-approved vaccine (Ervebo) and monoclonal antibody treatments exist for the Zaire ebolavirus species. However, rarer strains like the Bundibugyo virus currently lack authorized vaccines or specific treatments.

Prepared by:- Dr.Ahmed Erdogan.

14/03/2026

Welcome to Dr. Ahmed Erdogan.

30/06/2025

26/06/2025

Visual difference between each others.

26/06/2025

🔄 Fertilization and Zygote Formation
• Location: Ampulla of the fallopian tube (oviduct), the widest part.
• Event: A single s***m penetrates the secondary oocyte, which is arrested in metaphase II.
• This triggers the oocyte to complete meiosis II.
• The result is a haploid o**m (1N) and a polar body.
• Fusion of s***m and o**m nuclei creates a diploid (2N, 46 chromosomes) zygote.

⸻

📆 Cleavage (Mitotic Division) – Days 1 to 4
• Cleavage involves rapid mitotic divisions without overall growth in size, still enclosed within the zona pellucida.

Day 1: Zygote
• First mitotic division → 2-cell stage.

Day 2: 2-cell blastomere
• Each cell is called a blastomere.
• Still enclosed by the zona pellucida.

Day 3: 4-cell stage
• Continued cleavage → 4 equal blastomeres.

Day 4: Morula (16–32 cells)
• Solid ball of cells.
• Cells begin to compact, increasing contact and communication (tight junction formation).
• Still migrating down the fallopian tube.

⸻

🏠 Blastocyst Formation – Day 5
• Fluid enters the morula, forming a cavity (blastocoel) → Blastocyst.
• First differentiation of cells:
• Trophoblast (outer layer): Will form the placenta.
• Embryoblast (inner cell mass): Will form the embryo.
• The blastocyst hatches from the zona pellucida, enabling it to interact with the uterine lining.

⸻

🌱 Implantation Begins – Day 6
• Location: Endometrium of the uterus.
• The trophoblast contacts the uterine epithelium and begins to differentiate:
• Cytotrophoblast: Inner layer of mononucleated cells.
• Syncytiotrophoblast: Outer, multinucleated layer that invades the endometrial stroma and secretes hCG to support the corpus luteum.
• The embryoblast will further develop into the bilaminar disc (epiblast and hypoblast).

⸻

🔬 Additional Key Structures in the Diagram:
• Zona Pellucida: A glycoprotein shell that prevents polys***my and supports the oocyte/early embryo.
• Corona Radiata: Granulosa cells surrounding the oocyte, providing nutrients.
• O***y: Releases the oocyte during ovulation.
• Uterine Tube (Fallopian Tube): Pathway for the oocyte and site of fertilization.
• Uterus: Final site of implantation and embryonic development.

We summarize the picture below 👇✍️.

25/06/2025

Abnormal lungs sounds

25/06/2025

Antibiotics and their groups.