Botulism in Veterinary Practice Causes, Signs, Pathogenesis and Prevention

 

Botulism is one of the serious life-threatening diseases caused by the toxins which produced by the bacterium clostridium botulinum. The botulism is also called the Shaken foal syndrome, Sausage disease, Limber neck disease and the loin disease it is mainly present in large animal’s small animals and humans as well it is clinically characterized by the flaccid paralysis, unilateral and impartial.

Etiology:

·      The clostridium botulism is a gram-positive bacterium

·      It is anaerobic (obligatory) rod spore forming

·      It is a soil born disease and having exotoxins

·      Spores are highly resistant up to the 30 years of life spam

·      Having the preformed toxins

·      Exotoxins (lethal toxins) A, B, C, D, E, F, G

·      B, C, D is related to the farm animals

·      A, B, E, F is related to the humans

·      These are also used as the bioterrorism’s

Epidemiology:

This disease is present all over the world and it affects the all types of species and more than that also affect the whole group of ages animals and it is common in these types of animals which are having the start to eat objects.

Sheep = Due to the protein deficiency

Cattle = Due to the phosphorous deficiency

Poultry and animals’ manure having botulism used as a fertilizer and slaughter house is having the dead carcass

Transmission:

There are the following four sources of transmission which were given below:

·      Forage is one of the sources of transmission having the PH 2-3 and anaerobic and silage is having the insoluble CHO having the PH 4.5 then spores then it grows having the toxin and then the pica animal eat and these forages is having the toxins called botulism.

·      Second one is the carrier botulism so there is a dead body having the anaerobic then the botulism it grows formed the toxins and after that it is ingested by the birds and animals it is about the 10,000-50,000 death years

·      The third method of transmission is the toxicosis infectious botulism and it is very rare in which having toxin plus bacteria is ingested so in the foal there is a stomach ulcer

·      The fourth one is the injuries or the wounds as the deep puncture as for tetanus

Pathogenesis:

So the process of pathogenesis start from the toxins which is produced by the bacteria after release of the toxin it goes into the blood stream after that it reaches to the nervous system which will inhibit the neurotransmitter so in the result there will be no production of the acetylcholine and result is having the no contraction so finally the flaccid paralysis takes place and if the respiratory system flaccid so it definitely cause the death of the animal.

Due to the botulism cat death so blood use in nutrition for the cats and as a result out of the 477 animals only the 50 cats remain alive all other 427 are expire.

Incubation period:

The incubation period depends upon the toxins which is approximately 3 to 17 days

Clinical Signs:

1.     Inability to take water and food

2.     The muscle paralysis depends on the location

3.     Ascending flaccid paralysis hind limb then fore quarter then thorax then the head plus the fore limb

Acute is having the cholic and tremors

Subacute is having the knuckling, inability to rise head, mydriasis (pupil dilation), tosses (eyelids drop), withdrawal reflex of hind limb absent, tongue tone reduce, sternal recumbency, head on the flank, drooling of the saliva, decrease ruminal motility and last the tympany plus the constipation.

Shaker Foal Syndrome:

·      In foal it is 3 to 8 months of the age

·      Clinical signs are the above present

·      But in this case of sceneries the head of the animal and the neck of the animal is shaking

·      In this there will be the gastric ulcers present

·      And in last there will be also the presence of the foci necrosis

Limber Neck Disease:

·      In the sheep there will be the upper and the down head movement

·      And due to the food having the preformed toxins

Diagnosis:

There will be the diagnosis through which we diagnose the disease and its severity so first and there main thing is to get the history of the animal from the owner and also take the important information from the animal as well with the help of equipment’s and tools you have at the time and after proper history taking you can easily diagnose then from the fertilizers and the pica and feed presence also help you to diagnose the disease and most importantly the clinical signs is the most important role in the diagnose the disease of the animal.

Differential Dx:

Following are the differential dx given below:

·      Hypocalcemia after the parturition

·      Hypoxemia in which the head not fixed having the vomiting and less intake of the potassium

·      Tick paralysis is due to the bedding of animals and grazing due to pesticides and fertilizers

·      Organophosphate poisoning due to atropine drug of choice

·      Equine encephalitis

·      Hepatic encephalopathy

·      Rabies in dogs

Treatment:

So, the following type of treatment we use in this disease given below:

·      Hyper Immune Serum is 30,000 IV uses for the foal and 70,000 IV is used for the adult horse and most importantly we cannot give antibiotics because it is due to the preformed toxins

·      We also use the stomach tube

·      Also done the supportive therapy

Control:

We are able to reduce or control this disease by controlling the following reasons which were given below:

·      Correction of the diet

·      Proper disposing of carcass or incineration

·      Multivalent vaccines in enzootic

·      Don’t used milk and meat

Conclusion:

So at the end we simply conclude that botulism is a silent and deadly disease which is caused by the powerful toxins that will disrupt the nerve function and also lead to the paralysis and more overly it is largely preventable through the proper hygiene and early awareness and most importantly the management plays the key role to protecting both the animal and human health from this kind of life threatening condition.