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In Northeast India, African Swine Flu Causes an Epidemic Among Pigs - The Wire

In Northeast India, African Swine Flu Causes an Epidemic Among Pigs - The Wire


In Northeast India, African Swine Flu Causes an Epidemic Among Pigs - The Wire

Posted: 20 May 2020 12:00 AM PDT

Mukti Doley and his three friends covered their faces as they rowed next to Majuli — the world's largest river island on the transboundary Brahmaputra river. The COVID-19 pandemic has made masks a common sight everywhere including in this relatively remote part of Assam in north-eastern India. But these fishers were covering their faces for another reason—to keep out the stench of rotting pig carcasses caught among the hyacinths near the riverbanks.

Instead of fishing, Doley and other fishers have been busy clearing the hyacinths so that the carcasses flow downstream.

Suspected to have been brought in by infected pig carcasses floating down the Brahmaputra from Tibet in China, an epidemic of African Swine Flu (ASF) that broke out in February has decimated the pig population in Dhemaji and Lakhimpur districts. Tangoni, Simen Chapori, Telam and Jonai in Dhemaji district are the areas that have witnessed most of the deaths in this region of traditional pig farmers.

ASF has already killed over 13,000 domestic pigs in Assam, a state with a pig population of 2.1 million and an annual piggery business estimated at INR 80-100 billion (USD 1.05-1.32 billion).

Thousands of carcasses have been floating down the rivers of the Brahmaputra basin. Tributaries such as Subansiri, Ranganadi, Dikrong, Jiyadhal, Sisi-Tongani, Charikodiya, Gainadi and Simen—and then the main river have been carrying carcasses that have often reached Jorhat, over 100 kilometres downstream. In some cases, carcasses have floated till Tezpur, almost 300 kilometres downstream.

Confluence of Siang-Dibang-Dihing [Google map adapted by Farhana Ahmed]

It has created panic in large parts of the Brahmaputra valley. Even if Doley and his fellow fishers caught fish now, hardly anyone would buy them—they are scared that the fish have been poisoned by the rotting pig carcasses.

Besides posing a threat to the pork industry, ASF is severely impacting the rivers and other water bodies of this biodiversity-rich area due to improper disposal of carcasses. It is a major threat to aquatic life as well as domestic cattle that graze on the riverbanks.

ASF does not affect humans.

Swine flu of a new kind

"The animals first have rheumy discharges from their eyes, followed by fever and loss of appetite, before succumbing," said Jogen Taid, a pig farmer who lost 25 animals in Laimekuri village of Jonai sub-division in Dhemaji. "We've never seen such problems among our pigs before."

The symptoms include high fever, unconsciousness, breathing problems, vomiting, dysentery, loss of appetite, reddish warts near the ear, mouth, legs and groins. "The pigs die in two to seven days of showing these symptoms," said Ramesh Kuli, a piggery owner.

Feroze Doley, another pig farmer in Simen Chapori, said that the mortality rate of animals kept in captivity is relatively low compared to those that roam freely and eat everywhere.

The Animal Husbandry and Veterinary Department (AH&VD) of the Assam government first responded to the epidemic by vaccinating against Classical Swine Fever or hog cholera—a disease common to pigs in this region. But when the vaccinated animals kept falling ill and dying, the AH&VD sent blood samples to the National Institute of High Security Animal Diseases (NIHSAD) in Bhopal on April 29.

The results came on May 1, confirming the outbreak of ASF among the pigs dying in Assam and the adjacent state of Arunachal Pradesh. This is the first time this disease has been reported in India.

According to Office International des Epizooties (OIE), "African Swine Fever (ASF) is a highly contagious haemorrhagic viral disease of domestic and wild pigs caused by a large DNA virus of the Asfarviridae family, which also infects ticks of the genus Ornithodoros." The OIE goes on to note that it "can be spread by live or dead pigs, domestic or wild, and pork products. Transmission can also occur via contaminated feed and fomites (non-living objects) such as shoes, clothes, vehicles, knives, equipment etc., due to the high environmental resistance of ASF virus. There is no approved vaccine against ASF."

A devastating spread across East and Southeast Asia

Since 2018, the UN Food and Agricultural Organisation (FAO) has been monitoring the outbreak of ASF in Asia. Since it was first detected in August 2018 in China, 1.19 million pigs have been culled in the country. It had then spread to Mongolia, Vietnam, Cambodia, Laos, Myanmar, the Philippines, North Korea, South Korea, Timor-Leste, and Indonesia.

Defining ASF as "unprecedented global threat: a challenge to food security, wildlife management and conservation," the FAO had scheduled a conference for affected countries in September this year. At that time, India was not one of the affected countries.

The virus has a long survival period, helping it spread easily. According to the FAO, it "remains infectious for months in pork products and more than 1,000 days in frozen pork. Humans play a major role in short and long distance introduction and spread of the virus."

In India, the central agriculture ministry sent a warning to all state governments on June 10, 2019, saying ASF "is a matter of concern for India as there is movement of both live pigs and pork products into India from its neighbouring countries." The advisory also said, "the border Indian states need to remain alert on the movement of live pigs and pork products into their territory. In this regard, the people in the border areas, especially in the northeast, require to be adequately sensitised."

The Chinese connection

Some residents of Dhemaji heard of the epidemic in Tibet when they went on work to the India-China border this February. They were told of pig carcasses floating down the Siang river—the main stem of the Brahmaputra as it enters India from China. Many of the northern tributaries of the Brahmaputra also originate in Tibet. ASF broke out in Arunachal Pradesh and Assam within days of the first sightings of pig carcasses on the Siang.

Transboundary transmission of ASF through rivers is a possibility strengthened by reports of wild boar deaths in the area, specifically at Lidor Soyit on the upper ridge of the Sille river in East Siang district of Arunachal Pradesh. The reports surfaced on May 14.

One of the ways ASF is transmitted is through the wild boar population and the ticks that live off them. Transmission may have happened via wild boars as well.

Threat to Kaziranga

The Lidor Soyit case threatens the wild boar population of Kaziranga National Park, the world-famous home of the one-horned rhino. The Brahmaputra flows along the forest. Most families at a village adjacent to the park's Agoratoli Range rear pigs and movement of domestic as well as wild boars is common in the area.

The park authorities have now dug a trench two metres deep and two kilometres long on the border in an effort to keep the populations apart.

Farhana Ahmed is a journalist and documentary maker based in North Lakhimpur, Assam.

This article first appeared on Thirdpole. Read the original here

Swine fever virus kills pigs worth N7bn in Lagos farm - AFAN - Pulse Nigeria

Posted: 02 Jun 2020 12:00 AM PDT

African swine fever virus is a large, double-stranded DNA virus in the Asfarviridae family. The virus causes a hemorrhagic fever with high mortality rates in domestic pigs.

Some isolates can cause death of animals as quickly as a week after infection.

African swine fever is the biggest threat to commercial pig production the industry had ever seen, according to the World Organisation for Animal Health.

Oke said due to the restriction of movement by both the Federal and State governments, many of the affected farmers were unable to visit the farm to attend to the animals which resulted in the death of the animals.

He said some of the affected farmers were now dead, while others were bed-ridden due due to the huge loss in their business and source of livelihood.

He said very few were now struggling to revive the farm which was now in ruins.

According to Oke, about two months before the lockdown, our farmers in Oke-Aro discovered that there was outbreak of swine fever in the farm.

"They tried to contain it and treat the animals but because of the inability of our people to go to the farm during the lockdown, they were not able to treat the animals very well.

"The situation resulted in the death of many of the pigs in the farm and the loss is very huge investments.

"It is a very huge loss to the sector and some affected farmers died of shock.

"Oke-Aro market is one of the largest piggery market in the country.

"Many of the affected farmers borrowed money from the banks and have not been able to pay back since the incident occurred.

"We have lost some of our farmers due to the incident, some are in the hospital as we speak and some are still battling with the losses," Oke lamented.

The AFAN's chairman said Swine fever virus was a major killer of pigs any outbreak and almost all the pigs would be dead.

Oke described the piggery value chain as very huge, with Nigeria having the biggest producer in West Africa.

"The Oke-Aro piggery farm is in ruins. Our farmers are in pain because they have lost all their live investments," he said.

"The piggery farm sits on about 10,000 acres of ariable agricultural farm land with about 10,000 active members.

"Members breed top quality pigs for local and export consumption.

"We are still trying to relate the situation to the Federal and State government, the Lagos state government is aware and have been to the farm, as I was reliably informed," he said.

Oke appealed to the federal and state governments to assist assist the farmers in order to revive the sector as the country battled to recover from COVID-19 pandemic.

"We want to reach out to the Minister of Agriculture and Rural Development through AFAN, to see what the federal government can do in terms of grants and compensation for the affected farmers.

"We are looking at compensation from the government despite the fact that some have died and others are still battling to revive the farm.

"The loss is very huge and it will have huge effect on the piggery value chain and the farmers for a long time," he said.

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