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Y3R7 - (Community) 🧑‍🧑‍🧒‍🧒 > L19: Bacterial Food-Borne Infections > Flashcards

L19: Bacterial Food-Borne Infections Flashcards

1
Q

CA of Typhoid

A

salmonella typhi (107 types)

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2
Q

CA of Paratyphoid

A

Salmonella paratyphi
- A (frequent)
- B (the most common)
- C (rare)

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3
Q

Reservoir of Typhoid & Paratyphoid

A
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4
Q

Most Dangerous Reservoir of Typhoid

A

Chronic carriers are the most dangerous

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5
Q

Chronic Carriers of Typhoid

A
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6
Q

IP of Typhoid

Study MOT of Typhoid & Paratyphoid

A

14 days, but this depends on the infective dose can vary from 3 days to 1 month

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7
Q

IP of Paratyphoid

A

Paratyphoid fever is usually 1-10 days.

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8
Q

Susceptible Age of Typhoid

A

Susceptibility is general

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9
Q

Infectivity Period of Typhoid

A

From last few days of I.P. & as long as the organism appear in excreta. (Variable in typhoid)

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10
Q

Infectivity Period of Paratyphoid

A

1-2 weeks for paratyphoid

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11
Q

Susceptible sex for Typhoid

A

more cases among males, but carrier state is more in females

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12
Q

Immunity to Typhoid

A

develop after infection (clinical or subclinical) or immunization.

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13
Q

Susceptible environment for Typhoid

A

occurs all over the year with high incidence in late summer & early autumn.

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14
Q

General Prevention of Typhoid

A

with referral to general epidemiology.
❶ Environmental sanitation
❷ Health education of the public.

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15
Q

Specific Prevention of Typhoid

A
  • Vaccination
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16
Q

Vaccination for Typhoid

  • Nature
A
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17
Q

Vaccination for Typhoid

  • Dose
A

❶ Oral typhoid vaccine: 3-4 doses, 2 days apart.

❷ Polysaccharide vi antigen vaccine: single subcutaneous dose is available

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18
Q

Vaccination for Typhoid

  • Indication
A
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19
Q

Vaccination for Typhoid

  • Protective Value
A

moderate for all preparations.

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20
Q

Composition of TAB Vx

A
  • 1 ml contain 1000 million S. typhi
  • 750 million S.paratyphi A & B
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21
Q

Composition of TABC Vx

A
  • 1 ml contain 1000 million S. typhi
  • Where paratyphi C is endemic, 750 million organisms are added
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22
Q

Composition of Typhoid Vx

A

1 ml contain 1000 million S. typhi

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23
Q

Case Control Measures for Typhoid

A
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24
Q

Contact Control Measures for Typhoid

A
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25
Carrier Control Measures for **Typhoid**
26
Epidemic Control Measures for **Typhoid**
27
Case Control Measures for **Typhoid** - Notification
local health office
28
Case Control Measures for **Typhoid** - Isolation
at fever hospital or at home
29
Case Control Measures for **Typhoid** - TTT
with appropriate antibiotics
30
Case Control Measures for **Typhoid** - Release
after clinical & bacterial cure (3 -ve stool & urine cultures 2 weeks after fever)
30
Case Control Measures for **Typhoid** - Disinfection
concurrent (for urine & stool, articles) & terminal
31
Contact Control Measures for **Typhoid** - Survaillence
3 weeks from exposure for early case & carrier finding
32
International Measures for **Typhoid**
Typhoid vaccination is recommended for travelers to endemic areas
33
Def of **Brucellosis**
34
CA of **Brucellosis**
35
Reservoir of Brucellosis
Infected animals; cattle, goats & sheep & pigs. No man reservoir
36
MOT of **Brucellosis**
37
MOT of Brucellosis
...
38
IP of **Brucellosis**
Highly variable & difficult to ascertain 5-60 days
39
Infectivity Period of **Brucellosis**
No man to man transmission
40
Susceptible Age for **Brucellosis**
All ages
41
Susceptible Sex for **Brucellosis**
Both sexes
42
Immunity to **Brucellosis**
Severity & duration of clinical illness are subject to wide variation, Duration of acquired immunity is uncertain
43
Preventive Animal Measures for **Brucellosis**
44
Preventice Human Measures for Brucellosis
45
Case Contact Measures for **Brucellosis**
46
....
....
47
Case Contact Measures for **Brucellosis** - Isolation
no need for isolation
48
Contact Contact Measures for **Brucellosis**
49
Outbreak Measures for **Brucellosis**
❶ Trace source of infection (e.g. milk products). ❷ Restricted distribution of unpasteurized milk & milk products is enforced.
50
International Measures for **Brucellosis**
Quarantine measures for imported animals.
51
Def of **Bloody diarrhea**
52
Bloody diarrhea: is a significant cause of illness and death in young children, particularly those who live in less-developed countries.
...
53
Causes of **Bloody Diarrhea**
54
Def of **Shigellosis**
Shigellosis is a highly infectious intestinal disease caused by a family of bacteria called shigella
55
CA of **Shigellosis**
there are four types of shigella (S. dysenteriae, S. flexneri, S. boydii and S. sonnei).
56
Reservoir of **Shigellosis**
only human
57
IP of **Shigellosis**
12-96 hours
58
MOT of **Shigellosis**
59
Def of **Enterohemorrhagic E-coli**
Enterohemorrhagic E. coli (EHEC) or shiga toxin-producing E is one of E-coli strains that cause severe intestinal infection in human .
60
Enterohemorrhagic E-coli id different from other E. coli because it makes a ...... called shiga toxin.
potent toxin
61
This toxin damages the lining of the intestinal wall, causing bloody diarrhea.
...
62
CA of **Enterohemorrhagic E-coli**
Enterohemorrhagic E-coli.
63
Reservoir of **Enterohemorrhagic E-coli**
human (in the form case and carrier) cattle goat and sheep
64
Source of Infection of Enterohemorrhagic E-coli
stool of infected persons.
65
MOT of **Enterohemorrhagic E-coli**
66
IP of **Enterohemorrhagic E-coli**
2-10 days
67
Prevention & control for bloody diarrhea
68
International measures for bloody diarrhea
69
Done
...

Y3R7 - (Community) 🧑‍🧑‍🧒‍🧒 (30 decks)

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