News Scan for Nov 22, 2019

CWD in Wisconsin
Saudi MERS case
Polio in 6 countries
Sudan dengue outbreak
Yellow fever in Venezuela

Chronic wasting disease detected in another Wisconsin deer

Wisconsin's Department of Natural Resources (DNR) announced today that a wild white-tailed buck harvested during the state's recent archery season in Dunn County near Menomonie in the western part of state has tested positive for chronic wasting disease (CWD).

News of the CWD detection comes on the eve of the opening of Wisconsin's 9-day gun deer season.

The deer was tested as part of the DNR's surveillance efforts, and the area is 18 miles outside of the existing Chippewa Valley CWD area where five wild white-tailed deer tested positive in Eau Claire County in 2018 and 2019.

Last year, testing of 373 samples from Dunn County were all negative, and the DNR said the comprehensive nature of the effort and the latest detection suggest that CWD probably isn't distributed throughout the county. The disease isn't usually spread evenly, however, and the DNR said more samples are needed to better understand its spread in the newly affected area.

Wisconsin law requires the DNR to ban deer baiting and feeding in counties or portions of counties within 10 miles of where wild or farm-raised deer test positive for CWD or tuberculosis. Dunn and Chippewa counties are already subject to the bans because of their location near positive detections in Eau Claire County.

DNR will staff four locations in the area for in-person CWD testing during the firearm hunting season's opening weekend starting tomorrow, and it has several other CWD sampling options in Dunn County, including self-service kiosks at seven locations and at DNR offices by request. Dunn County also has two deer carcass waste disposal sites.
Nov 22 Wisconsin DNR press release


New MERS case identified in Saudi Arabia

Today Saudi Arabia's Ministry of Health (MOH) reported one more MERS-CoV case, in a 42-year-old man from Yanbu, a port city on the Red Sea.

The MOH said the man’s contact with camels was unknown, and his MERS-CoV (Middle East respiratory syndrome coronavirus) exposure is classified as primary, meaning he probably wasn't exposed to another MERS patient.

So far this month, Saudi Arabia has reported 11 MERS-CoV cases, compared with 14 in October and 4 in September.

As of the end of October, the World Health Organization (WHO) has received reports of 2,482 cases, at least 854 of them fatal, since the disease was first identified in 2012. Saudi Arabia has been by far the hardest-hit country.
Nov 22 Saudi MOH


Sixteen more polio cases reported in 6 countries

Six countries reported 16 new polio cases over the past week, including four African nations that confirmed circulating vaccine-derived poliovirus type 2 (cVDPV2) cases, according a weekly update today from the Global Polio Eradication Initiative (GPEI).

Afghanistan reported a new wild poliovirus type 1 (WPV1) case, which involves a patient from Badghis province who had an Oct 17 paralysis onset, bringing the country's total so far this year to 21 cases, which now matches the number reported for all of 2018.

In Pakistan, health officials reported four more WPV1 cases, three in Khyber Pakhtunkhwa province and in from Sindh province. Paralysis onsets range from Oct 23 to Nov 3, and the country has now reported 86 WPV1 cases for the year, a dramatic spike after having 12 in 2018. Also, Pakistan reported two more cVDPV2 cases, both in Khyber Pakhtunkhwa province involving Oct 28 and Nov 3 paralysis onsets. The country has now reported nine such cases this year after having none last year.

Elsewhere, Nigeria reported 1 more cVDPV2 case involving a patient from Oyo state who had an Oct 9 paralysis onset, pushing the country's total this year to 18. Democratic Republic of the Congo (DRC) officials noted 3 more cVDPV2 cases, all in patients from Haut Lomami province, lifting the country's total this year to 45, well above the 20 cases reported for 2018. The patients' paralysis onsets range from Sep 17 to Sep 22.

The Central African Republic (CAR) reported 2 more cVDPV2 cases, 1 from RS4 province and the other from RS3 province. Their paralysis onsets were Oct 1 and Oct 6, respectively. The new developments put the CAR's total so far at 16 cases. And finally, Angola reported 3 more cVDPV2 cases, 1 in Huambo province and 2 in Kwanza Sul province. Patients' paralysis onsets range from Sep 16 to Sep 28, and the country has now reported 42 cases in 2019.
Nov 22 GPEI weekly report


WHO: Dengue outbreak in Sudan poses high risk of spread

Sudan is experiencing a dengue outbreak that began in August and as of Nov 4 has led to 1,197 suspected cases, 5 of them fatal, in seven of the country's states, but the vast majority (1,111) in Kassala state, the WHO said today in a statement.

The country is also battling Rift Valley fever, cholera, malaria, and chikungunya outbreaks. The WHO warned that a high likelihood of coinfections with chikungunya and/or malaria complicates case management and may result in poor patient prognosis.

Of 125 samples tested at the national lab in Khartoum, 71 were positive. Of the suspected case-patients, 7.9% had hemorrhagic symptoms. Just over half of the cases are in females, and 93% are in patients older than 5 years.

The WHO said dengue fever is endemic in Sudan, and so far the serotypes involved in the outbreak have not been identified. It said control and response activities are limited because of years of political and civil unrest. It added that the risk of international spread is high owing to the presence of suitable mosquito vectors in neighboring countries and because Port Sudan, located in the dengue-affected Red Sea state, has a high volume of international trade and traffic that could lead to further dengue spread
Nov 22 WHO statement


Venezuela confirms first locally transmitted yellow fever case since 2005

A 46-year-old man from Venezuela's Bolivar state has become the country's first case of locally transmitted yellow fever since 2005, according to an update yesterday from the WHO.

"Most of the territory of Venezuela is considered as at risk for sylvatic [occurring in animals] yellow fever, and this case marks the first confirmed autochthonous case of yellow fever diagnosed in Venezuela since 2005," the WHO said. "The origin of the infection of this case is likely to be sylvatic, in an area determined as at risk for yellow fever."

The patient experienced symptom onset on Sep 14, and as of Nov 13 he remains hospitalized with chronic renal failure and moderate anemia.

Yellow fever can spread quickly among people exposed to the mosquito-borne virus, and can be deadly. There is no cure for the disease, but the virus can be prevented through vaccination. A single dose of the yellow fever vaccine provides immunity for life.
Nov 21 WHO

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