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Health For Mzansi

Low snake antivenom stock is a ‘major disaster’

by Liezl Human
25th January 2023
in Grow It, Trending
Reading Time: 5 mins read
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Low snake antivenom stock is 'a major diaster'

Herpetologists are worried that dwindling stocks of the South African-produced polyvalent snake antivenom will become a bigger problem in the coming months. Photo: Supplied/Health For Mzansi

South Africa’s only snake antivenom producer can’t make enough of its polyvalent antivenom, which treats bites of at least ten venomous snakes. Experts are worried that dwindling stocks are going to cause a bigger problem in the coming months, with many veterinarians now running out of antivenom. Johan Marais, CEO of the African Snakebite Institute, says it’s a “major disaster” that doctors and vets can’t get hold of the polyvalent antivenom.

Snake experts are raising the alarm over a shortage of South African-produced polyvalent snake antivenom, as a production backlog is causing waiting times of at least six months for the delivery of the life-saving snake bite treatment. 

Johan Marais, CEO of the African Snakebite Institute. Photo: Snakebite Institute

The polyvalent antivenom is the gold standard for the treatment of venomous snake bites and is produced in Johannesburg by the South African Vaccine Producers (SAVP), a subsidiary of the National Health Laboratory Service (NHLS). This antivenom (SAIMR Polyvalent Snakebite Antiserum SAVP) treats snakebites from the Black Mamba, Green Mamba, Jameson’s Mamba, Cape Cobra, Forest Cobra, Snouted Cobra, Mozambique Spitting Cobra, Rinkhals, Puff Adder and Gaboon Viper.

Backlog needs urgent attention

In the last few months, a massive production backlog at the SAVP has led to shortages at health facilities, especially among veterinarians, according to Johan Marais, herpetologist and CEO of the African Snakebite Institute.

“People’s dogs have died because for the last eight months, veterinarians cannot buy antivenom. It really is a big problem,” said Marais.

Herpetologist, John Marais

He said he recently spoke to a medical doctor who couldn’t get his hands on antivenom.

Around 3,500 people are bitten by snakes in South Africa each year, with 800 hospitalisations, Marais estimated of these, only about 10% require antivenom treatment, and depending on the snake bite, treatments range from six to twenty vials per patient.

Marais estimates that there are 10 snakebite deaths per year in South Africa. The most recent cause of death data from Statistics South Africa found that there were 47 deaths from “contact with venomous animals and plants” in 2018.

Marais said that bites from Puff Adders and Mozambique Spitting Cobras must be treated quickly as they can cause severe tissue damage. If left untreated for too long, the patient may need multiple operations to repair the damage.

He said the shortage has worsened in the last eight months. Marais said this has previously been a problem, but not quite as bad as the current situation.

Another challenge was that South Africa’s polyvalent antivenom is bought and used in other African countries, such as Kenya and Senegal. Kenya currently does not manufacture its own antivenom and experiences about 700 snakebite deaths per year, many more than South Africa.

‘Working around the clock’

Mike Perry, the founder of African Reptiles and Venom, supplies the SAVP with the raw snake venom used to produce the polyvalent antivenom. Perry said it takes a few years to produce the antivenom; the venom he supplies in 2023 will only be part of the antivenom available in five years.

Mike Perry, founder of African Reptiles and Venom. Photo: Supplied/ African Reptiles and Venom

Perry explained that the snake venom he supplies to the SAVP is injected into horses in low doses over long periods of time. When the horses become hyperimmune to the venom, blood is drawn from the horses and the antibodies against the venom are separated from the blood.

NHLS spokesperson Mzimasi Gcukumana told GroundUp that the SAVP is “working around the clock” to reduce and ultimately eradicate the backlog of antivenom production.

Gcukumana said load shedding has negatively affected antivenom production. He said the laboratory was able to supply “some provincial health departments and some private facilities, including 13 veterinary practices, during December to ensure there is adequate supply in the country”.

Plans in place

The laboratory said it plans to strategically place antivenom banks in high-risk areas across the country.

The National Department of Health spokesperson, Foster Mohale, said that it currently doesn’t have a contract with the producer for antivenom despite it being “an essential medicine”.

Mohale said the SAVP informed officials that the “difficulty in sourcing the material” was the reason for the current low stock. Mohale did not have statistics as each province often buys antivenom directly from the SAVP.

This article was written by Liezl Human and for first published by Ground Up.

ALSO READ: Kraken: Getting to know this Covid-19 variant

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Liezl Human

Liezl Human

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HIV and initiation: Supporting boys through cultural rites Security fails as gangs target Eastern Cape clinics Dr Makanya blends spiritual healing with art therapy Canola oil: A heart-healthy choice for your kitchen No more pain! Tackle the torment of toothaches How smoking causes harmful bacteria in your mouth Discover delicious, healthy dishes that will make your heart sing Rediscover the joy of creamy pap with chicken livers