AVIAN INFLUENZA IN THE NEWS.

Mexico has been dealing with a number of new cases of avian influenza in recent months.Nineteen outbreaks of H7N3 avian influenza in Mexico have been reported to the World Organisation for Animal Health (OIE) between January and March in the states of Jalisco, Puebla and Veracruz. One of the outbreaks was in a small flock of Indian peafowl and 3 others were in backyard flocks. However, the majority of outbreaks were in commercial flocks of layers or breeders with a total of more than 2.7 million birds affected. Of these, around 14,000 died and more than 145,000 had been destroyed. Several of the affected farms were identified as the result of surveillance, which is continuing in all three states, according to the report. Avian influenza has also been reported in Myanmar and China. Myanmar had been free of HPAI since February last year, but a so-far unidentified H5 virus has returned to the region of Sagaing in the center of the country. A flock of 500 10-month-old layers was affected, leading to the death or destruction of all the birds. China’s news agency, Xinhua reports that the authorities in Myanmar have culled 7,000 chickens at 13 farms in the affected poultry farming zone in Monywa in an attempt to stop the virus from spreading further. A quarantine zone has been established and surveillance has been stepped up with no human infections reported so far. Vietnam reported the loss of a village flock of 200 birds in the northerly province of Nghe An earlier this month. The presence of the H5N1 virus subtype has been confirmed. Two new linked outbreaks of H5N8 HPAI have been reported following testing of native chickens received by a slaughterhouse in the southwestern city of Kaohsiung in Taiwan. The H2N2 virus was also confirmed in one of the flocks. Almost 1,300 birds were affected in total. After abnormal mortality of 558 birds was observed in 2 flocks of breeding geese in Taibao city in Chiayi County, the H5N2 virus was confirmed and the surviving 3,000 birds have been destroyed. Despite the recent mild weather that should have helped reduce the spread of HPAI, Focus Taiwan reports that 1,312 geese have been culled at a farm in Chiayi county in the last week after confirmation of a highly pathogenic H5 virus. This brings the number of Taiwanese poultry farms affected by HPAI so far this year to 27.

New NDV-H5NX avian influenza vaccine has potential for mass vaccination of poultry.

Researchers have developed and tested a new vaccine that protects chickens and other poultry from multiple strains of avian influenza found in the U.S., including H5N1, H5N2 and H5N8. A team of researchers at Kansas State University, in collaboration with Garcia-Sastre of the Icahn School of Medicine at Mount Sinai, has developed a vaccine that protects poultry from multiple strains of avian influenza found in the U.S., including H5N1, H5N2 and H5N8. The vaccine has the potential to be administered through water or into embryonated eggs, making it easier for poultry producers to vaccinate flocks.The vaccine, called NDV-H5Nx, protects chickens and likely other poultry against the three recently introduced U.S. avian influenza strains H5N1, H5N2 and H5N8, as well as against Newcastle disease virus -- a virus that naturally affects poultry. Avian influenza killed millions of chickens and turkeys in the U.S. in spring and summer 2015, leading to billions in lost revenue for the U.S. poultry industry. The NDV-H5Nx vaccine also has the potential to be administered to millions of birds at a time through water, said Jürgen Richt, Regents distinguished professor of veterinary medicine, director of the U.S. Department of Homeland Security's Center of Excellence for Emerging and Zoonotic Animal Diseases at Kansas State University and one of the researchers involved in the discovery. "The vaccine we produced is a live vaccine, which means it replicates in birds," Richt said. "Because it's live, we believe that the vaccine could be sprayed into the air or put in the water supply so that when the chickens need a drink, they could be vaccinated. A poultry farm could vaccinate all of its birds in a single day because all living creatures need water to live." The vaccine also has potential to be administered to developing chicks in eggs, resulting in offspring being automatically vaccinated for the diseases, said Wenjun Ma, Kansas State University assistant professor of diagnostic medicine and patho biology and one of the researchers involved. The NDV-H5Nx vaccine has the ability to differentiate infected from vaccinated animals, or DIVA. This compatibility is critical for the U.S. poultry industry because it provides evidence to trade partners that poultry have been vaccinated and is free of H5, Richt said. H5 vaccines currently on the market require that each chicken be injected by hand. Many poultry operations have millions of birds and it would take many hours to vaccinate every chicken, Richt said.This is a major advantage as many birds can be vaccinated per time. Story source; science daily.

AVIAN INFLUENZA!!!

SIGNS OF BIRD FLU IN MAN.

The bird flu virus has been know to affect man and causing death in some of those affected.The major means of infection is close contact with affected poultry such as handling and processing .The issue of bio security on farms can not be over emphasized, the use of foot dips,tyre dips and hand washing with stipulated disinfectants are essential for safety.The procurement of healthy birds from reliable sources is also vital in the biosecurity protocol. The incubation period is usually 3-7 days after contact with infected poultry. Signs include;A sudden high temperature of 38C or above,a dry, chesty cough, headache, tiredness,inappetence, sore throat, runny nose, muscle and joint pain, stomach upset, diarrhoea and sore throat. The other signs include pneumonia, respiratory distress which is followed by multiple organ failure resulting in death. Prevention; 1) wash hands after handling poultry. 2) avoid contact with wild birds. read more

FOOD SAFETY AND BIRD FLU VIRUS.

The bird flu virus is inactivated by heat,hence cooking at high temperature of 70°c will destroy the virus.This fact is of importance when handling and cooking poultry. Several cases of H5N1 in humans have occurred from consumption of improperly cooked or raw poultry products. Freezing,blast-freezing and refrigeration of poultry products does not deactivate the bird flu virus,so ensure that you cook thawed poultry properly at high temperature and make sure the fluid from the poultry does not mix with foods that will be consumed raw. 

 Chicken should be cooked thoroughly with no pink parts, eggs should also be properly cooked. All poultry and poultry products should be thoroughly cooked. Hands should be washed immediately after you handle poultry and poultry products,the bird flu virus can be inactivated in acidic pH ,thus washing with soap is very effective to curb the spread of the virus. Water can be disinfected to ensure its safety,the addition of chlorine to water at normal purification levels >3 is effective to kill the bird flu virus.People in areas where the bird flu virus has been identified should ensure thorough cooking of such products and prevent cross contamination with other foods,utensil and cooking agents should be washed with soap and hot water. 

 The bird flu virus can survive at low temperatures for at least a month,hence common food preservation such as freezing,refrigerating cant inactivate the virus, hence cook poultry properly. In 2007 ;German officials found the H5N1 virus in frozen duck sample at a poultry slaughter house,which confirms that freezing cant inactivate the virus. Eggs may contain the virus on the shell and within the eggs,eggs should not be consumed raw,or partially cooked,no runny yolks either.

Cooking at high temperature for long periods is a sure way to ensure food safety. In man infection with the H5N1 virus has been linked to home slaughter of poultry,handling and cooking of diseased poultry,hence proper hygiene is essential. The key is thorough washing of hands,cooking utensils and cleaning and disinfecting cooking surfaces.Cross contamination should be prevented by cooking poultry separately. Wash,clean and disinfect.

A CASE SCENARIO # BIRD FLU VIRUS.

The world being a global village, facilitates trade interaction between countries and also promotes smuggling of animals along trade zones. The international air travel and smuggling is a major route of introducing and spreading of the bird flu virus. A case readily comes to mind about a Thai man that brought in 2 eagles to Europe in 2004.The birds were seized at customs because import of birds to Europe from Asian countries is prohibited. The seized birds seized at the Brussels international airport showed no signs of bird flu.The birds were killed and upon diagnosis in the vet department,the HPAI was confirmed. The authorities swung in to action and traced birds that had passed through customs with the birds,they found 2 parrots,2000 parrots in quarantine and 400 birds in another quarantine area,all birds were culled to forestall spread. The health authorities went further and traced all those who had contact with the eagles;they were identified,isolated and treated with Tamiflu. The Thai man reported himself to the police when he heard that the birds were H5N1 POSITIVE,he was isolated and treated.All those who had contact with the birds were asymptomatic except the VET,that euthanize the birds,he was isolate and treated same with members of his family. The main reasons we are recording outbreaks of various diseases around the world is because of international trade facilitated by travel and also smuggling along trade routes.Stuffed animals,hides of skin used to make drums, tools/equipment have all been implicated in spreading of various diseases. It will be appropriate to advise everyone to stay away from exotic animals, do not touch them if found in the wild and dont smuggle in animals off unknown origin. BE PROACTIVE! STOP THE BIRD FLU VIRUS.