Rattlesnake attacks prompt cry for antivenin:[All But Toronto Edition]
Odile NelsonNational Post Don Mills, Ont.:Aug 13, 2002.  p. A2 

 

Author(s):

Odile Nelson

Article types:

News

Section:

News

Publication title:

National Post. Don Mills, Ont.: Aug 13, 2002.  pg. A.2

Source Type:

Newspaper

ProQuest document ID:

244905401

Text Word Count

615

Article URL:

http://proquest.umi.com/pqdweb?RQT=309&VInst=PROD&VName=PQD&VType=PQD&Fmt=3&did=000000244905401&clientId=17280

 

Abstract (Article Summary)

The Georgian Bay area has the highest concentration of Massasauga rattlers in Ontario. Locals usually report only two to three snakebites annually. No clear answer for the rise in snake bites has been given, but experts point to the unusually hot, dry weather.

Last summer the company, Wyeth-Ayerst Canada, stopped manufacturing the antidote, forcing the Ontario Ministry of Health to purchase a more expensive antivenin from the United States. Shortly thereafter, the Ontario Ministry of Health disbanded the provincial distribution system and passed on the purchase of the American product to invididual hospitals.

Dr. [Ola Kassim] said some hospitals have refused to purchase Crofab and have instead chosen to rely on the supplies of neighbouring hospitals. But this, he said, creates a potentially dangerous situation when one area is hit by a rash of incidents and those limited supplies are eliminated.

Full Text (615   words)

(Copyright National Post 2002)

Six rattlesnake attacks in Ontario's Cottage Country over the past two weeks has led health officials to warn someone could die if adequate antivenin supplies are not distributed.

The Georgian Bay area has the highest concentration of Massasauga rattlers in Ontario. Locals usually report only two to three snakebites annually. No clear answer for the rise in snake bites has been given, but experts point to the unusually hot, dry weather.

The Ontario Ministry of Health used to run a province-wide anti- venin depot where the provincial government purchased the expensive medication from a Canadian company and then monitored its distribution to area hospitals on a case-by-case basis.

But last summer the company, Wyeth-Ayerst Canada, stopped manufacturing the antidote, forcing the Ontario Ministry of Health to purchase a more expensive antivenin from the United States. Shortly thereafter, the Ontario Ministry of Health disbanded the provincial distribution system and passed on the purchase of the American product to invididual hospitals.

"I don't think they [government officials] understand the urgency of the situation. Yes, snake bites are rare but we've already had six this year.... It's only when somebody dies that something will be done," Dr. Ola Kassim, director of laboratory services and pathology at the West Parry Sound Health Centre, said yesterday.

The new antivenin, Crofab, costs US$1,800 for two vials; the typical treatment requires 10 vials.

Dr. Kassim said some hospitals have refused to purchase Crofab and have instead chosen to rely on the supplies of neighbouring hospitals. But this, he said, creates a potentially dangerous situation when one area is hit by a rash of incidents and those limited supplies are eliminated.

"You have to plan for worst-case scenario. There has to be in the system enough antivenin so if one hospital has an unusual amount of cases, we all send our anti-venin to help out," he said.

Though the Massasauga rattler injects venom into its victims only 60% of the time, when it does, the effect can be fatal if not immediately treated. The venom thins a victim's blood, preventing the blood from clotting and causing a patient to bleed to death internally.

Dr. Kassim said without a central organization monitoring the distribution of the antidote, hospitals lacking supplies do not know who to contact in an emergency.

Janice Hardy, spokeswoman for the South Muskoka Municipal Hospital, said the new system has made it difficult for hospitals like her own, which has had only three life-threatening snake bite cases in 15 years, to justify purchasing an expensive drug that may not be used before its expiry date.

Though her hospital hopes to eventually purchase its own anti- venin supply, its efforts are also frustrated because its American manufacturer is unable to meet the demand. The South Muskoka Hospital will likely acquire the antivenin this October.

"In the meantime, we would have no choice but to ask other hospitals to send us some of their own limited supply or we would have to send our patient there," Ms. Hardy says.

But Georgian Bay biologists say area residents have little to worry about if they educate themselves about the Massasauga rattler.

Ron Black, a wildlife biologist with the Parry Sound office of the Ministry of Natural Resources, said the two- to three-feet long snake is typically shy and does its best to avoid predators.

The snake, which has a black belly and grey body with dark reddish-brown blotches on its back, generally rattles a warning if people get too close and only attacks when it feels threatened.

"If people learn what they can about the species and use a reasonable level of common sense and caution there's no reason to fear them," Mr. Black said.