Among the following, which were frequently mentioned in the news for the outbreak of Ebola virus recently?

Updated 11 Apr 2026 · From UPSC Prelims GS Paper I 2015, Q82

Contents21
UPSC Prelims GS2015Science and Technology
  1. ASyria and Jordan
  2. BGuinea, Sierra Leone and Liberia
  3. CPhilippines and Papua New Guinea
  4. DJamaica, Haiti and Surinam
Show answer

Answer: (B) Guinea, Sierra Leone and Liberia

The 2014 Ebola outbreak — the largest in history — was centered in three West African countries:

Guinea (where it started),

Sierra Leone, and

Liberia.

These three nations were devastated by the virus and were constantly in the news throughout 2014-15.

You can easily eliminate the other options using basic geography:

Option

(a) Syria and Jordan are in the Middle East (associated with conflict/refugee crisis, not Ebola).

Option

(c) Philippines and Papua New Guinea are in the Southeast Asia/Pacific region.

Option

(d) Jamaica, Haiti and Surinam are in the Caribbean/South America. None of these regions were affected by the Ebola outbreak.

Tip: Ebola is historically associated with Africa (the virus was first discovered near the Ebola River in the Democratic Republic of Congo in 1976).

Whenever you see Ebola in a question, think Africa first.

Why this was asked

The 2014-15 Ebola outbreak was the largest in history, killing over 11,000 people across Guinea, Sierra Leone, and Liberia.

This question was asked in 2015 UPSC because the Ebola crisis dominated international headlines throughout 2014-15, making it prime current affairs material.

UPSC is testing whether students can connect major global health emergencies to their correct geographical regions and timeframes.

Ebola Virus Disease

Science And Technology Ebola virus outbreak

Ebola Virus Disease: Outbreaks, Transmission & Global Impact

Must know

Ebola is a viral hemorrhagic fever with 60-90% fatality rate

2014-16 West Africa outbreak was the largest in history

Guinea, Sierra Leone, Liberia were the epicenter countries

Good to know

First discovered in 1976 near Ebola River in Democratic Republic of Congo

Transmitted through direct contact with bodily fluids of infected persons

What is Ebola

Ebola Virus Disease (EVD) is a severe viral hemorrhagic fever caused by the Ebola virus. The disease spreads through direct contact with blood, secretions, or other bodily fluids of infected people or animals. It causes internal bleeding, organ failure, and has one of the highest fatality rates among infectious diseases.

Major Ebola Outbreaks

Year

Location

Cases

Key Features

1976

Zaire (DRC) near Ebola River

318

First identified outbreak, gave the virus its name

2014-16

Guinea, Sierra Leone, Liberia

28,600+

Largest outbreak in history, WHO emergency

2018-20

Democratic Republic of Congo

3,400+

Second largest outbreak, conflict zone

2021

Guinea

23

New outbreak, different strain

2014-16 West Africa Crisis

Started in Guinea in December 2013, officially declared in March 2014

Spread rapidly to Sierra Leone and Liberia due to porous borders and cultural practices

WHO declared Public Health Emergency of International Concern in August 2014

International response included US military deployment and MSF medical teams

Outbreak officially ended in June 2016 after multiple re-emergences

West Africa Outbreak Map

The three epicenter countries share borders, enabling rapid cross-border transmission
The three epicenter countries share borders, enabling rapid cross-border transmission

Source: ECDC - European Union — Epidemiological update: outbreak of Ebola virus disease in West ... · www.ecdc.europa.eu

Ebola Transmission Chain

%%{init: {"flowchart": {"wrappingWidth": 460}}}%%
flowchart TD
  s1["`****Animal Reservoir****
Fruit bats are primary hosts, virus spreads to primates`"]
  s2["`****Zoonotic Transmission****
Humans infected through contact with infected animals`"]
  s3["`****Human-to-Human Spread****
Direct contact with blood, vomit, feces, sweat of infected persons`"]
  s4["`****Community Transmission****
Funeral practices, healthcare settings amplify spread`"]
  s5["`****Epidemic Phase****
Exponential growth without proper isolation measures`"]
  s1 --> s2
  s2 --> s3
  s3 --> s4
  s4 --> s5
Exam traps

Geographic confusion: Ebola is African disease - eliminate non-African options immediately

Time period trap: 2014-16 outbreak was West Africa, not Central/East Africa

Country confusion: Guinea-Bissau is different from Guinea (Conakry)

Transmission myth: Ebola does NOT spread through air - only direct contact with fluids

West African Countries & Geography

Geography Guinea Sierra Leone Liberia

West African Countries: Guinea, Sierra Leone & Liberia

Must know

Guinea, Sierra Leone, Liberia are neighboring West African countries

All three have Atlantic Ocean coastline and tropical climate

Good to know

Guinea has capital Conakry, Sierra Leone has Freetown

Liberia was founded by freed American slaves in 1847

Regional Context

These three countries form a contiguous bloc in West Africa along the Atlantic coast. They share similar tropical climates, cultural practices, and porous borders that facilitate movement of people and goods - factors that contributed to rapid disease spread during the Ebola crisis.

Country Profiles

Country

Capital

Key Feature

Borders

Guinea

Conakry

Bauxite mining, French colonial heritage

Mali, Senegal, Guinea-Bissau, Sierra Leone, Liberia, Côte d'Ivoire

Sierra Leone

Freetown

Diamond mining, British colonial heritage

Guinea, Liberia

Liberia

Monrovia

Founded by freed slaves, never colonized

Guinea, Sierra Leone, Côte d'Ivoire

West Africa Map

The Mano River Union connects these three countries economically and culturally
The Mano River Union connects these three countries economically and culturally

Source: Nations Online — Political Map of West Africa - Nations Online Project · www.nationsonline.org

UPSC Relevance

Mano River Union: Regional organization linking Guinea, Sierra Leone, Liberia

Natural resources: Guinea has bauxite, Sierra Leone has diamonds, Liberia has iron ore

Post-conflict recovery: Sierra Leone and Liberia emerged from civil wars in 2000s

Peacekeeping: India contributed troops to UNAMSIL (Sierra Leone) peacekeeping

Exam traps

Guinea vs Guinea-Bissau: Different countries - Guinea borders Sierra Leone, Guinea-Bissau borders Senegal

Regional confusion: These are West African countries, not Central or East African

Capital traps: Conakry (Guinea), Freetown (Sierra Leone), Monrovia (Liberia) - don't mix up

Global Health Emergencies & WHO Response

Science And Technology outbreak news

Global Health Emergencies: WHO's PHEIC Mechanism

Must know

PHEIC = Public Health Emergency of International Concern declared by WHO

2014 Ebola was third PHEIC ever declared

COVID-19 (2020) was sixth PHEIC declaration

Good to know

PHEIC triggers international coordination and resource mobilization

PHEIC Framework

Public Health Emergency of International Concern (PHEIC) is WHO's highest level of health alert. It's declared when a health event constitutes a risk to other countries through international spread and requires coordinated international response.

Major PHEIC Declarations

Year

Disease/Event

Region

Outcome

2009

H1N1 Influenza (Swine Flu)

Global pandemic

First PHEIC, ended 2010

2014

Ebola Virus Disease

West Africa

Ended 2016, 28,600+ cases

2016

Zika Virus

Americas

Linked to microcephaly, ended 2016

2019

Ebola (DRC)

Democratic Republic of Congo

Conflict zone outbreak

2020

COVID-19

Global pandemic

Ongoing, 700+ million cases

2022

Monkeypox

Global (non-endemic countries)

Ended 2023

WHO Emergency Response

Emergency Committee of international experts advises WHO Director-General on PHEIC

International Health Regulations (2005) legally bind 196 countries to report outbreaks

Temporary recommendations can include travel restrictions, border screening, vaccine deployment

Global Health Security Agenda aims to prevent, detect, respond to health threats

Emergency Response Components

# Health Emergency Response
## **Detection**
- Disease surveillance
- Laboratory networks
- Early warning systems
## **Response**
- Medical countermeasures
- Contact tracing
- Isolation protocols
## **Coordination**
- WHO leadership
- Country cooperation
- NGO partnerships
## **Resources**
- Emergency funding
- Medical supplies
- Expert deployment
Exam traps

PHEIC vs pandemic: PHEIC is WHO's alert mechanism, pandemic describes disease spread

Recent updates: Monkeypox PHEIC ended in 2023, COVID-19 emergency phase ended

Authority confusion: Only WHO Director-General can declare PHEIC, not individual countries

Viral Hemorrhagic Fevers

Science And Technology

Viral Hemorrhagic Fevers: Ebola Family & Related Diseases

Must know

Viral Hemorrhagic Fevers (VHFs) cause bleeding disorders and high mortality

Ebola and Marburg are filoviruses with similar symptoms

Good to know

Lassa fever is common in West Africa, CCHF in Central Asia

All spread through direct contact with infected fluids or vectors

Disease Category

Viral Hemorrhagic Fevers (VHFs) are a group of diseases caused by RNA viruses that damage the vascular system, leading to internal bleeding, shock, and often death. They're among the most dangerous infectious diseases known to humans.

Major Viral Hemorrhagic Fevers

Disease

Virus Family

Geographic Distribution

Fatality Rate

Vector/Transmission

Ebola

Filovirus

Central/West Africa

60-90%

Direct contact, fruit bats

Marburg

Filovirus

Central/East Africa

50-80%

Direct contact, fruit bats

Lassa Fever

Arenavirus

West Africa

15-20%

Rodent urine, human contact

CCHF

Bunyavirus

Africa, Asia, Europe

10-40%

Tick bites, livestock contact

Hantavirus

Bunyavirus

Americas, Asia

35-50%

Rodent droppings, inhalation

Clinical Features

Initial symptoms: High fever, headache, muscle pain, weakness - resemble flu

Hemorrhagic phase: Internal bleeding, blood in vomit/stool, bleeding from gums

Shock phase: Organ failure, low blood pressure, confusion, coma

No specific treatment: Supportive care only, experimental drugs for some types

VHF Global Distribution

Most VHFs are geographically restricted to specific regions based on vector/reservoir distribution
Most VHFs are geographically restricted to specific regions based on vector/reservoir distribution

Source: Research journals - PLOS — The number of cases, mortality and treatments of viral hemorrhagic ... · journals.plos.org

Exam traps

Ebola vs Marburg: Both filoviruses from Africa, but Marburg discovered earlier (1967)

Transmission confusion: VHFs are NOT airborne - require direct contact or vector bites

Geographic mixing: Lassa is West Africa, Marburg is East/Central Africa

Fatality rates: Ebola highest (60-90%), Lassa lowest among major VHFs (15-20%)