| Disease Agents |
Nematodes:
- Capillaria erinacei
- Capillaria ovoreticulata
- Capillaria spp.
(J15.21.w1,
B228.9.w9,
B291.12.w12, B337.3.w3)
Capillaria spp.: males 6-8mm, females 10mm, thin and hair-like.
Adults live in the intestines, pre-patent period is presumed to be about
three weeks. Eggs are passed in the faeces. Infective eggs
may be consumed directly or by eating earthworms which have consumed the
eggs. The eggs are very resistant and survive for a long time in the
environment. (B291.12.w12)
Capillaria erinacei: Eggs from hedgehogs
contained full-developed first-stage larvae after 40-50 days at 19-20°C.
Feeding such eggs to earthworms Eisenia rosea or Lumbricus
terrestris (50 eggs per worm) resulted in larvae being found in the
body cavity, mainly in the chloragogenous tissue, after five days. Larvae
moulted on the 17th day and were then (2nd stage) infectious to hedgehogs.
Hedgehogs fed infected earthworms develop infection, with mature worms
after 25-26 days. (J210.17.w1)
Further information on Disease Agents has
only been incorporated for agents recorded in species for which a full Wildpro
"Health and Management" module has been completed (i.e. for which a
comprehensive literature review has been undertaken). Only those agents with further
information available are linked below: |
| General Description |
Clinical
signs:
- May be no clinical signs (B228.9.w9,
B284.6.w6,
B291.12.w12)
- Watery diarrhoea and reduced weight gain may be seen
with mild disease in hoglets. (B291.12.w12)
- Green mucoid diarrhoea with severe infections. (B22.27.w3,
B284.6.w6,
J15.21.w1)
- Diarrhoea; may be blood in the droppings. (B337.3.w3)
- Weight loss and lethargy with severe infections. (B284.6.w6)
- May be eating well but be thin and losing weight. (D94)
- May have reduced appetite. (B337.3.w3)
- Severe signs may be most common in young animals. (B228.9.w9,
B291.12.w12)
- Severe infections: Severe diarrhoea, lethargy,
emaciation and death. (B228.9.w9);
faeces soft and slimy, progressing to watery diarrhoea. Associated
dehydration, lethargy and weight loss. May progress to anaemia, cachexia
and death. (B291.12.w12)
Note: Often there may be an associated gastrointestinal
bacterial infection. (D107)
[See: Colibacillosis (with special reference to Waterfowl and Hedgehogs),
Proteus Infection in Waterfowl and Hedgehogs,
Salmonellosis (with special reference to Waterfowl and Hedgehogs)]
|
| Further Information |
The infection
rate with intestinal nematodes in hedgehogs appears to be highly variable.
(B228.9.w9)
Diagnosis:
- Bipolar eggs in faeces.
- Difficult to differentiate eggs from those of respiratory worms Capillaria aerophila
[see: Lungworm
Infection of Hedgehogs].
- (J15.21.w1)(B284.6.w6)
- Eggs may be of two types: either 55-65 µm, slim with
parallel side walls, a polar cap on each end appearing sunken into a
bottle neck and with a net like structure on its brown surface, or 50-60
µm long, with slightly bulging sides, only slightly protruding polar
caps and a smooth or fine-grained pale brown outer surface. B291.12.w12
- At post mortem examination: Scrapings
from the intestinal mucosa should be mixed with warm physiological
saline (0.9% NaCl) and examined against a black background for the
presence of the worms. (B291.12.w12)
Treatment:
- Levamisole
- 27mg/kg (e.g. Levacine, Norbrook; Levadin 75, Vétoquinol, Nilverm Gold,
Mallinckrodt Veterinary Ltd.), three subcutaneous injection, repeated twice at 24 hour
intervals (J15.21.w1)
- 10mg/kg subcutaneously, repeated after 48 hours (B156.7.w7)
- 25 mg/kg subcutaneous repeated after seven days (V.w26);
- Note: Adverse reactions have been rarely observed following levamisole treatment
therefore it has been suggested that hedgehogs should be discretely and intermittently
monitored for a period of approx. 30 minutes following administration.
Hyperaesthesia
(jumpy with exaggerated reactions), twitching, dyspnoea/gasping, excess
salivation and cyanosis have been described. Hedgehogs with adverse effects may be treated
with steroid therapy (dexamethasone) and supplemental oxygen (oxygen cage).(V.w26)
- Fenbendazole (e.g.
Panacur, Intervet)
- 100mg/kg orally, daily for five to seven days - may
be given in food; (J15.21.w1);
- 5mg daily for five days or 25mg once, oral. (B228.11.w11);
-
100 mg/kg daily orally for five days, may be given in feed. (B284.6.w6);
- 1 ml of 10% liquid (Panacur 10% liquid Wormer for Cats and Dogs, Intervet)
per kg bodyweight (100 mg/kg) orally in food daily for five days,
repeated after seven days (this has been used in very young hedgehogs,
e.g. 35g bodyweight). (D94)
- Mebendazole (e.g.
Telmin, Janssen Animal
Health)
- 100mg/kg orally, daily for five to seven days - may be
given in food. (J15.21.w1,
B156.7.w7)
- 50-100 mg/kg daily for five days. (B284.6.w6)
- 25mg twice daily for hedgehogs of less than 500 g bodyweight, 50 mg twice
daily for hedgehogs greater than 500 g bodyweight, orally: administer for five
days then repeat treatment after two to three weeks. (B22.27.w3)
- Febantel (e.g. Bayverm, Bayer)
orally, 50-100mg per kg bodyweight for five
days. (B228.11.w11);
0.5ml of 10% solution per kg bodyweight daily for five days. (B156.7.w7)
- Ivermectin
(Ivomec, Merial
Animal Health) orally or subcutaneously, 0.02mg per kg
bodyweight (B228.11.w11).Ivermectin
at 200 µg/kg bodyweight (subcutaneously) was considered to be
totally effective in removing Crenosoma infection (based on
thirty days of faecal examination) but Capillaria sp. [lungworm
or intestinal species not distinguished] eggs were still produced. (P5.29.w4)
- Suggested therapy for associated bacterial infection: Potentiated
sulphonamides (e.g. Tribrissen (Trimethoprim/
Sulphonamide)
24% (Schering-Plough
Animal Health), 30 mg/kg once daily intramuscularly or
subcutaneously, for five to eight days, or Zaquilan (Schering-Plough
Animal Health) 20-40 mg/kg orally once daily), or Amoxycillin
/ Clavulanic acid
(30-50 mg/kg twice daily orally, subcutaneously or intramuscularly) or
Enrofloxacin
(10 mg/kg twice daily subcutaneously, intramuscularly or orally). (D107)
- Supportive therapy, as required: Fluid therapy if the
hedgehog is not eating and drinking. Buscopan (Boehringer
Ingelheim Limited) is recommended (0.1-0.2 ml/kg no more
frequently than every eight hours, not for prolonged use) if
squeals indicate that the hedgehog is suffering from intestinal
cramping. Probiotics, digestive enzymes, vitamins and Kaolin may
also be useful. (D107)
Treatments should be repeated if faecal examination shows the presence
of eggs in the faeces 2-3 weeks after initial treatment. (B228.11.w11, V.w26)
Reports of infection:
- Capillaria erinacei infection of the stomach
and small intestine in 5/74, Capillaria erinacei infection of
the intestine in 5/74 and other Capillaria spp. or unidentified
nematodes in a further 7/74 hedgehogs at post mortem
examination, July 1976 to November 1986, in the UK. (J3.128.w2)
- Capillaria spp. in the intestine of Erinaceus
europaeus. (B156.7.w7)
- Capillaria erinacei and Capillaria ovoreticulata may
occur in the intestine. (B284.6.w6)
- In the small intestine of the central African
hedgehog (Atelerix albiventris - Four-toed hedgehog)
from Nairobi, Rictularia
sp. in 8% of 48 individuals. (B228.9.w9)
- Eggs of Capillaria spp. were found in
62% of faecal samples from 1849 hedgehogs Erinaceus europaeus
in Germany, 1974-1983 (J166.91.w1)
- Eggs of Capillaria spp. were found in 48.8% of
faecal samples from 1175 hedgehogs Erinaceus europaeus in
Germany, 1984-1991. (J166.100.w1)
- Faecal samples (643 samples) from hedgehogs collected in
three successive winters revealed parasitism in 55-79%, mainly Capillaria
sp., Crenosoma striatum and Isospora rastegaivae);
most heavily infected individuals were considered to be underweight. (J77.97.w1)
- Capillaria spp, Brachylaemus erinacei
and coccidia were found in 93% of 232 gastrointestinal tracts of
hedgehogs Erinaceus europaeus from Germany, winter 1980-81. (J162.28.w1)
- Intestinal Capillaria erinacei and Capillaria
ovoreticulata in 72.3% of hedgehogs Erinaceus europaeus
at Pfaffenhofen (Upper Bavaria), Germany. (Th5)
- Capillaria sp. [not distinguished respiratory
or intestinal] (also Crenosoma sp. and Phisaloptera sp.)
in a European hedgehog. (P5.29.w4)
Nematodes:
- In the intestines Gongylonema neoplasticum, Trichinella
spiralis, Trichosoma erinacei (?Capillaria erinacei,
Capillaria exigua), Trichosoma (?Capillaria) putorii from
European hedgehogs Erinaceus spp.. Also in Erinaceus
europaeus intestines Rictularia aethenichini and Trichuris
mettami. (J18.38.w1)
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