Ebola Virus Disease (EVD) is a rare but severe, often fatal illness in humans. Caused by viruses within the Orthoebolavirus genus, it leads to viral hemorrhagic fever, damaging blood vessels and severely disrupting the body’s organ systems. Ebola virus disease is primarily centered in Sub-Saharan Africa, particularly in areas near tropical rainforests. 

How Does It Spread?

Ebola is not transmitted through the air like the flu or COVID-19. Instead, it spreads through direct contact with:

• Infected Body Fluids: Blood, saliva, sweat, vomit, feces, urine, or semen of an infected or deceased individual.
• Contaminated Objects: Needles, clothing, bedding, or medical equipment contaminated with infected fluids.
• Infected Wildlife: Contact with fruit bats, non-human primates, or handling bushmeat in affected regions.

Symptoms

Symptoms typically appear 2 to 21 days after exposure (averaging 8 to 10 days) and usually progress in phases:

1. Early Stage (“Dry” Symptoms):
   • High fever and chills
   • Severe headache
   • Muscle and joint aches
   • Extreme fatigue and weakness
   • Sore throat and loss of appetite
2. Advanced Stage (“Wet” Symptoms):
   • Nausea, severe vomiting, and diarrhea
   • Unexplained bleeding or bruising (gums, nose, blood in stool or vomit)
   • Skin rash
   • Impaired kidney and liver function
   • Neurological effects, such as confusion or irritability

Diagnosis and Treatment

Early diagnosis is crucial, though early symptoms can mimic other tropical diseases like malaria or typhoid fever. Laboratory confirmation is made using methods such as Reverse Transcriptase PCR (RT-PCR) testing.

1. Targeted Medical Therapies

• Monoclonal Antibodies: Approved treatments—such as Inmazeb (a combination of three monoclonal antibodies) and Ebanga (a single monoclonal antibody)—specifically target the virus causing Zaire ebolavirus infections, significantly improving survival rates.

2. Intensive Supportive Care

Even with modern antibody therapies, supportive care remains critical:

• Rehydration: Intravenous (IV) fluids and electrolytes to manage dehydration caused by severe vomiting and diarrhea.
• Blood Pressure & Oxygen Management: Medications (vasopressors) and oxygen therapy to maintain adequate organ perfusion.
• Symptom Management: Pain relievers and medications to control fever and secondary bacterial infections.

Prevention and Control

• Vaccination: Vaccines (such as Ervebo) are approved to protect against the Zaire ebolavirus species and are used primarily in outbreak response strategies.
• Infection Control: Healthcare workers must use strict Personal Protective Equipment (PPE).
• Safe Burial Practices: Avoiding direct physical contact with individuals who have passed away from the disease.