For 4th yr MBBS students mnajeeb80@gmail.com

2. DR: NAJEEB MEMON
Asst: Professor
COMMUNITY MEDICINE & P.H.S
LUMHS, JAMSHORO
Sind, PAKISTAN
e mail mnajeeb80@gmail.com

3. DROPLET INFECTION

4. DROPLET INFECTION
Direct projection of spray of droplets of
 Saliva
 Nasopharyngeal secretions
during
coughing
sneezing
speaking
& spitting
talking in to surrounding atmosphere

5. DROPLET INFECTION
Diseases transmitted:-
 Meningitis
 Common cold
 Diphtheria
 Pertusis (Whooping cough)
 TB
 RTIs

6. Pertusis
(Whooping Cough)
Diphtheria

7. Pertusis
(Whooping Cough)
Diphtheria
highly contagious disease,
cause classic spasm
(paroxyms) of
uncontrollable coughing,
high pitched intake of air
which create characteristic
“WHOOP” sound.
Infectious disease caused
by the Corynebacterium
species of bacteria and is
most often associated
with a sore throat, fever,
& the development of an
adherent membrane on
the tonsils and/or
nasopharynx.
Definition

8. PertusisDiphtheria
Causative
Agent Corny bacterium
Diphtheria B. Pertusis

9. PertusisDiphtheria
Sources (cases and carriers)
nasopharyngeal
secretions, skin lesion
discharge,
contaminated fomites
and infected dust
(Cases)
Nasopharyng: Sec:
Bronchial Sec:
Objects by discharge.

10. PertusisDiphtheria
Host Fact:
Age: Children 1-5 Ys:
Sex: Both Sexes
Immunity: First few
wks or Months
Age: Infants & Preschool
Sex: Female > Male
Immunity: No Maternal
bodies to Infant.

11. By
Droplet Infection
Inf: Cutaneous Lesion
PertusisDiphtheria
Mode of
Transmission
Direct
Indirect

12. PertusisDiphtheria
Incub: Period
Clinical Feat:
2-6 Days
1. Pharyngeal
2. Laryngeal
3. Nasal
4. Cutaneous
7-21 Days
1. Catarrhal Stage (1-2 wks)
2. Paroxysmal stage (4-6 wks)
3. Convalescent Stage

13. PertusisDiphtheria
Diagnosis Throat swab
Schick Test
1. CBC (Lymphocytosis)
2. CXR (Perihilar
infiltration,
atelectasis,emphysema)
3. ELISA (To detect IgM, IgG, IgA)
4. Nasopharyngeal swab
(Mainly in stage-I)

14. PertusisDiphtheria
Control
Measures
Early detection of cases &
carriers
Isolation
Treatment
(a) Cases
(i) Diphtheria Antitoxin I/M or I/V
(depend upon severity)
(ii) Benzyl Pencil: 2 lac u x 6 hrly
OR Erythromycin 250 mg x 6 hrs
for 5-6 days
(b) Carriers
Erythromycin 250 mg x 6 hrs for 10
days
R/
Antibiotics
(Erythr, Ampicillin, Septran)
Antitussive,
Sedatives,
Steam inhal:
Avoid cough provoking Factors
(Dust, smoke, excitement)
Preventive Measures
Vaccination
Erythromycin (< 2 Ys for 10 days)

15. Birth BCG+OPV
6 weeks 1st PENTAVALENT+OPV+ Pn
10 weeks 2nd PENTAVALENT+OPV+ Pn
14 weeks 3rd PENTAVALENT+OPV+ Pn
9 months 1st Measles
2nd year (15 months) 2nd Measles
PENTAVALENT = (DPT + Hep B + HIB)
EPI Vaccination Schedule

16. THANX