Kala-azar Disease About,Signs and Symptoms,Prevention,Treatment

Kala Azar

Why in News?

Kala-azar cases in India declined by 98.7% between 2007 and 2022, from 44,533 to 834 and 632 endemic blocks (99.8%) spread across Bihar, Uttar Pradesh,Jharkhand, and West Bengal have received elimination status (less than one case per 10,000).

The only block that is still in the endemic category is Littipara in the Pakur district of Jharkhand (1.23

cases per 10,000 population).

What is Kala-azar Disease?

About:

It is also known as Visceral Leishmaniasis or Black Fever or Dumdum Fever.

There are three types of Leishmaniasis:

 Visceral Leishmaniasis, which affects multiple organs and is the most serious form of the disease.

 Cutaneous Leishmaniasis, which causes skin sores and is the most common form.

 Mucocutaneous Leishmaniasis, which causes skin and mucosal lesions.

€ It is a deadly parasitic disease caused by the protozoa parasite Leishmania and mainly affects the   people living in Africa, Asia and Latin America.The disease can cause death, if left untreated.

Global and National Status:

€ According to the World Health Organization(WHO), Kala-azar is the second deadliest parasitic

disease in the world, and as of November, 2022,about 89% of global cases are reported from eight

countries: Brazil, Eritrea, Ethiopia, India, Kenya,Somalia, South Sudan, and Sudan.India contributes about 11.5% of total cases of Kala-azar reported globally.Over 90% of kala-azar cases in India are reported from Bihar and Jharkhand, while Uttar Pradesh

and West Bengal have achieved their elimination targets at the block level.

Transmission:

€ It is transmitted to humans by the bite of an infected female phlebotomine sandfly.

Signs and Symptoms:

€Fever, weight loss, anemia, and enlargement of the liver and spleen.

Prevention:

€Prevention of kala-azar involves measures to reduce the breeding sites of sandflies and to protect

people from sandfly bites.

This can be achieved through the use of insecticides, bed nets, and repellents, as well as the improvement of housing conditions and access to clean water and sanitation.

The WHO also recommends Mass Drug Administration (MDA) in areas where the disease is endemic.

Treatment:

€The treatment of kala-azar involves the use of drugs,such as sodium stibogluconate and meglumine

antimoniate.

The WHO recommends a combination of two or more drugs for the treatment of kala-azar,

as monotherapy has a higher risk of treatment failure and drug resistance.

Related Initiatives:

€Global:

WHO’s New Roadmap for 2021–2030: To prevent, control, eliminate and eradicate a

set of 20 diseases, termed neglected tropical diseases, by 2030.

The WHO has also established the Global Programme to Eliminate Lymphatic Filariasis

(GPELF), which aims to eliminate lymphatic filariasis, onchocerciasis, and Kala-azar by MDA.

The target set by GPELF in 2000 to eliminate these diseases globally by 2020 was not

achieved. Despite setbacks due to Covid-19,WHO will accelerate work to achieve this target by 2030.

€ Indian:

The central government has taken several steps to achieve its goal of eliminating kala-azar from India by 2023, including building pucca houses through the PM-AWAS yojana, rural electrification, testing, treatment, periodic high-level review, and award distribution.

The Centre is also supporting the states in active case detection, surveillance,

treatment, and supply of diagnostic kits, medicines, and sprays.

National Kala-azar Elimination Programme

The National Health Policy-2002 set the goal of Kala-azar elimination in India by the year

2010 which was revised to 2015.

India signed a Tripartite Memorandum ofUnderstanding (MoU) with Bangladesh and Nepal to achieve Kala-azar elimination from the South-East Asia Region (SEAR).

Presently, all programmatic activities are being implemented through the National

Vector Borne Disease Control Programme(NVBDCP) which is an umbrella programme and is subsumed under National Health Mission (NHM).

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