|
Infection |
Causative Agent |
Source of Infection |
Sings/Symptoms |
Control |
|
Anthrax |
Bacillus anthraces |
Milk
handlers |
External form:
Malignant pustule, red
inflamed swelling and fever
Internal form:
Pneumonia with haemorrhage
|
Boiling of milk for 40
minutes
Autoclaving at pressure of
15 lbs
Prevent environment
contamination of milk by boiling |
|
Botulism |
Chlostridium botulinum |
Milk
|
Vomiting, abdominal pain
and difficulty in vision later nervous symptoms
consisting double vision, drooping of eyelid dilatation
of pupil |
Adequate heat treatment of
milk
Cool and storage at 100
oC
|
|
Bacillary Dysentery |
Shigella flexneri, Sh. sonnei, Sh. dysenteries
|
Milk
handlers |
Dysentery, fever, meningeal
symptoms |
Strict sanitary discipline
is enforced in dairy workers.
Heat treatment of milk
|
|
Brucellosis |
Brucella abortus, Br. meletensis, Br. suis
|
Milch animals |
Pain in joint and back,
temperature is usually undulant, headache, liver and
spleen enlarge. It causes abortion in female
|
Adequate heat treatment of
milk
Eradication of disease from
dairy animals by test and elimination method
Control of disease by
vaccination |
|
Cholera |
Cholera vibrio |
Milk
handler, soil, hand of patient and carrier
|
Painless diarrhea and
vomiting, initially skin is dry and wrinkled leg, eyes
deeply shrunken |
Heat treatment of milk
|
|
Coli
infection |
Pathogenic strain of Escherichia coli
|
Milk
handlers |
Gastroenteritis and
pneumonia |
Milk from quarter affected
with mastitis should not be used
Adequate heat treatment of
milk
Cooling and storage at 10
oC |
|
Chlostridium Welch infection |
Chlostridium welch |
Milk, milk handlers |
Gastroenteritis, vomiting,
weakness and dehydration |
Heat treatment of milk
Immediate cooling of milk
at 10 oC or below |
|
Diphtheria |
Corynebacterium progenies |
Milk
handlers |
Chilliness and depression,
sometimes vomiting and diarrhea, uneasiness in throat,
difficulty, stiffness of back and neck
|
Heat treatment of milk,
Examination of milk
handlers |
|
Pasteruellosis |
Pasteruella multocida |
Milch animals |
Fever pneumonia
|
Microorganism is destroyed
at the usual pasteurization temperature
To prevent recontamination
of milk after pasteurization |
|
Q
fever |
Coxiella burnetti (Rickettsial) |
Milch animals, milk |
Fever, sever headache and
some forms of infection of lungs often causes pneumonia
|
Calving shed should be away
from milk shed
Adequate heat treatment of
milk and prevent recontamination |
|
Staphylococcal interotoxic gestroenteritis
|
Staphylococus aureus |
Milk
handlers, milk |
Sever nausea and vomition,
diarrhea of less importance, weak pulse, subnormal
temperature, sever prostration |
Autoclaving at 15 lbs. for
20 min causes almost destruction of organism
Immediate cooling of milk
to 10 oC or below |
|
Streptococcal infection |
Streptococci of Group A |
Milk
handlers milch animals |
Scarlet fever, sore throat,
difficulty in swallowing and breathing
|
Health control of dairy
workers
Exclusion of milk from
mastitis affected quarters
Adequate heat treatment of
milk
Adequate cooling of milk
|
|
Tick
born encephalitis |
Tick
borne encephalitis virus |
Milch animals especially goats milk |
High rise of temperature,
drowsiness, headache, mental confusion and encephalitis
|
Adequate heat treatment of
milk
Immediate cooling of milk
at 10 oC |
|
Tuberculosis |
Mycobacterium tuberculosis |
Milk
handlers milch animals |
Cough of an irritable
nature particularly in the morning. Loss of appetite and
lose of weight, diarrhea or constipation. Pleurisy
causing pain in chest temperature is of swinging type.
Enlargement of lymph gland |
Eradication of bovine
tuberculosis
Adequate heat treatment of
milk
Health control of dairy
workers |
