Karachi at risk of Congo Virus

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By
Prof Dr. Abdullah G Arijo
Chairman
Department of Veterinary Parasitology
Sindh Agriculture University, Tandojam

With hidden danger associated with livestock animals, Eid ul Adha festivity is approaching in the next few days. Since Karachi does not have its own lively hood source, except for the coastal line, that makes Karachi a hub of business, therefore, the livestock from interior Sindh is pooling into urban cities (Karachi and Hyderabad) for sacrifices. Mass fear prevails about Congo, a threat that always draws attention during Eid festivity during yesteryears.

Credit goes to media for awareness regarding this emerging medical and veterinary problem, but the approach at the government level is all subjective and requires objective touch.

While Punjab Livestock Department has claimed that there is not a threat of the Congo virus in the province. Because all sacrificial animals were being thoroughly sprayed for protection against ticks at 166 pickets established at entry and exit points of the province to ward off the disease.

However, health experts in Islamabad have warned that unless preventive measures are not put in place, the Congo fever could become a crucial concern with the arrival of sacrificial animals in the urban centers.

Crimean-Congo hemorrhagic fever-Congo Virus or Crimean-Congo Hemorrhagic fever (CCHF) is a tick-borne viral illness that infects both wild and domestic animals, including livestock that humans rear for milk, meat, hides, and wool purpose. Humans can contract this disease by getting bitten by an infected tick living on the host animal or coming into contact with the blood, tissues, or fresh meat of the infected animal. Human-to-human transmission is also possible in case of close contact with the organs, blood or other secretions and bodily fluids of the infected person. 

Congo virus does not survive high temperatures, and well-cooked meat does not pose any risk of transmission of the virus. however, tick biting may be an avenue for viron to get entry into a victim.

Crimean-Congo hemorrhagic fever (CCHF) is a widespread disease caused by a tick-borne virus that causes severe viral outbreaks, with a fatality rate of 10–40%

Several wild and domestic animals, such as cattle, goats, sheep, and hares, serve as hosts for the virus. Transmission to humans occurs through contact with infected ticks or animal blood. The virus can also be transmitted from one infected human to another by contact with infectious blood or body fluids

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The onset of CCHF is sudden, with symptoms including headache, high fever, back pain, joint pain, stomach pain, and vomiting. Red eyes, a flushed face, a red throat, and petechiae (red spots) on the palate are common. Symptoms may also include jaundice, and in severe cases, changes in mood and sensory perception.

As the illness progresses, large areas of severe bruising, severe nosebleeds and uncontrolled bleeding at injection sites can be seen, beginning on about the fourth day of illness and lasting for about two weeks. In documented outbreaks of CCHF, fatality rates in hospitalized patients have ranged from 9% to as high as 50%.

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Congo fever is bot curable and treatable. Treatment for CCHF is primarily supportive. Care should include careful attention to fluid balance and correction of electrolyte abnormalities, oxygenation and hemodynamic support, and appropriate treatment of secondary infections. The virus is sensitive in vitro to the antiviral drug ribavirin. It has been used in the treatment of CCHF patients reportedly with some benefit.

People involved in winning livestock rearing are mostly at high risk due to close association with domestic animals. Therefore, it is advisable to use insect repellent on exposed skin and clothing. Insect repellants containing DEET (N, N-diethyl-m-toluamide) are the most effective in warding off ticks.

During animal slaughtering wearing gloves and other protective clothing is recommended. Individuals should also avoid contact with the blood and body fluids of livestock or humans who show symptoms of infection. Healthcare workers need to use proper infection control precautions to prevent occupational exposure, but this requires objective oriented mass counseling via print and electronic media.

The Sindh Health Department must issue a Congo alert in all urban cities of Sindh ahead of Eid-ul-Adha and display communicable material for mass awareness. Small medical camps should also be established around, particularly in Karachi city. These camps must be active in all small and big cattle markets, including Super Highway Cattle Market.

Cattle owners and butchers should be advised to adopt precautionary measures while dealing and selling or handling the animals. On-site advisory for the visitors may also be started to enable them to take the message that prevention and control of CCHF infection are achieved by avoiding or minimizing exposure to infected ticks by using tick repellents.

Wearing protective clothing and early and correct removal of ticks are may help a lot. The government of Sindh also must adopt a permanent policy of mass awareness programs to control the issue or this may make a mess.

5 COMMENTS

  1. Informative Sir.
    Exactly sir Govt should play its role in this problem.There must be using of PPE while slaughtering, handling of Animals and there must be properly disposing of nonedible unwanted material of a slaughter animals in this occassion.

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