Environmental Engineering Reference
In-Depth Information
Chorio-
meningitis,
lymphocytic
Infectious
hepatitis
choriomenin-
gitis
virus
(LCMV)
Hepatitis A
virus
House mice
urine, feces,
secretions
Feces from
infected
persons
Contaminated food
Water, food, milk,
oyster, clams,
contacts,
person-to-person,
fecal-oral
Fever, grippe, severe
headache, stiff neck,
vomiting, somnolence
Fever, nausea, loss of
appetite; possibly
vomiting, fatigue,
headache, jaundice
8-13 days
Eliminate or reduce mice.
General cleanliness.
Sanitation.
Sanitary sewage disposal,
food sanitation, personal
hygiene. Coagulate and
filter water supply, and
plus 0.6 mg/l free Cl
2
.
Obtain shellfish from
certified dealers.
Steam clams 4 to 6 min.
Exclude ill workers.
10 - 50 days,
average
30 - 35 days
Gastroenteritis,
viral
Rotaviruses,
Nor-virus
agent, echo-
and coxsackie-
viruses, and
others
Man, feces
from infected
foodhandler or
sewage
Water, food
including milk,
possibly fecal-oral
or fecal-respiratory
route, ice, clams
Nausea, vomiting,
diarrhea, abdominal
pain, low fever
24 - 72 hr,
24 - 48 hr,
3-15 days
Same as hepatitis A.
Amebiasis
(Amebic
dysentery)
Entamoeba
histolytica
Bowel
discharges of
carrier, and
infected person;
possibly also
Cysts,
contaminated
water, foods, raw
vegetables and
fruits, flies,
Insidious and
undetermined onset,
diarrhea or
constipation, or neither;
loss of appetite,
5daysor
longer,
average 2 - 4
weeks
Same as Shigellosis. Boil
water or coagulate, set,
filter through diatomite
5 gpm/ft
2
,Cl
2
.UsualCl
2
