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Case • A 12 months old child was brought to
RHTC, Rithora with c/oFever x 6 daysRunning nose x 6 daysAppearance of rash on face x
2days
• On examinationMalnourish childEye - Bitot spot bilateral
MEASLES(Rubeola–Redspots)
Dr Deepak UpadhyayDept. of Community Medicine
Rohilkhand Medical College & Hospital
History• References to measles – as early as 7th
century• Described by the Persian physician Rhazes
in the 10th century as “more dreaded than smallpox.”
• 1846 - Peter Panum described incubation period of measles and lifelong immunity after recovery
• 1954 - Enders and Peebles isolated the virus in human and monkey kidney tissue culture
Agent RNA paramyxovirus.Source of infection Case.Infective material Secretions of Nose, Throat & Respiratory tract.Mode of transmission – Air borne transmissionPeriod of infectivity 4 days before + 5 days after appearance of rash.Secondary attack rate Over 80% in susceptible contact.
Agent Factors
Age • Developing countries – 6 mths to 3 yrs. • Developed countries – over 5 years.
Male = Female. Immunity
• One attack – Life long.• Infants – Transplacentally from mother
(for 4-6 months)• Nutrition 400 times more mortality in
malnourished children
Host Factors
More in winters
High Population density & Movement.
Poorer the socio-economic condition lower the age of attack.
Transmission Person to Person by droplet infection & droplet nuclei.
Environmental Factors
Incubation period 10 days from exposure to onset of
fever. 14 days to appearance of rash.
Three stages in the natural history of measles are:
Prodormal or Pre-Eruptive stage. Eruptive stage. Post-measles stage.
Clinical Manifestations
It begins 10 days after infection & last until day 14.
Characterized by • Low grade to moderate fever.• A hacking dry cough.• Coryza.• Conjunctivitis.
A day or two before the appearance of rash; Koplik’s spots appear.
Prodromal Stage
Occur opposite to lower molars, but may spread irregularly over rest of the buccal mucosa.
Grayish white dots usually as small grains of sand.
With slight reddish areola occasionally hemorrhagic.
Koplik’s Spots
Temperature rises abruptly (app.40 -40.5ºC).
Rash starts on upper lateral parts of neck behind the ears along hair line & posterior part of cheek.
Rash spreads rapidly – • 1st 24 hrs. : Entire face
neck upper arm upper part of chest.
• Next 24 hrs. : Back abdomen entire arms thighs.
Itching is generally slight
Eruptive Stage
Fading of the rash proceeds down wards in the same sequence in which it appears.
As the rash fades, branny desquamation and brownish discoloration occur and then disappear within 7-10 days.
Lymph nodes at the angle of jaws & in the posterior cervical region are usually enlarged
Slight splenomegaly may be noted
ComplicationsDiarrhea is the most
common complication of Measles in India.
Otitis media
Pneumonia
Encephalitis
Other Complication
• SSPE (Sub-acute Sclerosing Pan-Encephalitis)
• Myocarditis• Exacerbation of an existing tubercular
process• Vitamin A Deficiency
Viral OthersGerman Measles. Meningococcemia
.Roseola Infantum. Typhoid fever.Erythema Infectiosum. Scarlet fever.Infectious Mononucleosis.
Live viral vaccine.Drug eruption.
DIFFERENTIAL DIAGNOSIS
TYPICAL RASH OF MEASLES
• Maculopapulous rash of Measles is often slightly hemorrhagic. May have Petechiae, and Ecchymoses.
RUBELLA / GERMAN MEASLES1.Tender lymph node
post-cervical, post-occipital, post-auricular region, post-occipital & post-auricular never enlarged in measles.
2. Evolution of rash is very rapid.
3. No rise in temperature.4. Occurs mainly in
teenagers & young adults
ROSEOLA INFANTUM• High fever (104-105OF);
no accompanying signs
• After 3-5 days Maculopapular rash starting on trunk arm & neck & slightly involves face & leg
• As soon as rash appears fever disappears.
• Duration of rash is hardly 24 hrs.
• Caused by Human Herpes Virus 6 (HHV-6)
ERYTHEMA INFECTIOSUM(Fifth Disease)
1)Usually in school going age group.2)No prodromal symptoms; Fever absent or
low grade.3)Slapped face appearance.4)A day or later Maculopapular rash on arms,
legs & trunk but rarely on palms & soles.5)Duration of rash quite long (2-6 wks); with
waxing & waning 6)Rash is highly pruritic in nature – caused by
Parvo-virus B19
INFECTIOUS MONONUCLEOSIS
• Caused by Ebstein Barr Virus.
• Moderate fever (102OF).• Pharyngitis,
Lymphadenopathy & Splenomegaly.
• Enanthema at junction of hard & soft palate.
• Maculopapular rash in Infectious Mononucleosus appears on treatment with Ampicillin.
MENINGOCOCCEMIA
The rash in acute meningococcemia is petechial purpuric. It is due to presence of organisms and rupture of small vessels in subcutaneous tissue.
TYPHOID
• Macular rose spots involving primarily the anterior trunk are seen in typhoid.
• Associated with prolong fever
SCARLET FEVER• Caused by Streptococci• Exanthem is red, punctate &
finally papular (goose flesh texture or coarse sand paper).
• Rash initially in Axilla. Involves groin and neck within 24hrs
• Red Strawberry tongue• Disappearance of the rash is
followed by desquamation of skin –begin by the end of first week & starts on face
Diagnosis • The diagnosis is usually Clinical• Leucopenia with relative lymphocytosis• Measles IgM antibodies – ELISA / HI• IgG antibodies > 4 times• Isolation of measles virus – by tissue
culture to identifying the genotype• All suspected measles cases should be
reported immediately
TreatmentThere is no specific antiviral therapy; Treatment is entirely supportive.
• Antipyretics (acetaminophen or ibuprofen) for fever
• Bed rest• Maintenance of an adequate fluid intake are
indicated. In immunocompromised/patient with
complication - Ribavirin (10mg/kg/day) X 5 days
Vitamin A Doses• All the cases of measles should be given
Vitamin A megadose
Age Immediately Next Day
< 6 month 50,000 IU 50,000 IU6 month – 12 month 1,00,000 IU 1,00,000 IU1 year – 5 year 2,00,000 IU 2,00,000 IU
PREVENTION OF MEASLES
1. In May 1974, W.H.O. officially launched a programme to protect all children of world against 6 vaccine preventable diseases.
2. Measles vaccination was introduced through U.I.P. (Universal immunization programme) in 1985.
PREVENTION OF MEASLESPrevention of measles is
of two types: 1) Active prevention:
(a) Measles vaccine.(b) M.M.R. Vaccine.
2) Passive prevention: by Gamma globulin.
Measles Vaccine• Type – live attenuated freeze dried vaccine• Composition – 5000 TCID-50 of Edmonsten
Zagreb Stain• Diluent – Distilled water• Dose – 0.5 ml• Route – Subcutaneous• Site – Right Upper arm (deltoid region)• Time for use – reconstituted vaccine should
be used with in 3-4 hr
Schedule of Measles • According to NIS
• 1st dose – 9 months• 2nd dose – 18 months
• Changes in schedule• During epidemic – 6-9 months• Revaccinate at 9 month & 18 month• Recently All doses of measles should be
replaced with MMR vaccine
• Side effect • Fever and rash• SSPE• Toxic Shock Syndrome
• Efficacy • After 1st dose – 85%• After 2nd dose – 95%
Vaccination strategy• In states with routine immunization
coverage≥80% • Introduction of 2nd Measles vaccine at age
of 18 month• Keeping high immunization coverage
• In states with routine immunization coverage≤80% • Catch-up, keep-up and follow-up, two of
which are supplementary vaccinations
.• Catch -up is defined as a one-time, nation wide vaccination campaign targeting usually all children aged 9 months to <10 years regardless of history of measles disease or vaccination status.
• Keep-up is defined as routine service aimed at vaccinating more than 95 per cent of each successive-birth cohort
• Follow up is defined as subsequent vaccination campaign conducted every 3 -5 years targeting usually all children born after the catch-up campaign
Post-exposure prophylaxis
• Live measles vaccine - given within 72 hours of exposure
• Immune globulin (IG) - given within 6 days of exposure
• IG may be especially indicated • Child younger than 6 months of age• Immunocompromised child
• Measles control: • reduction of measles morbidity and
mortality in accordance with targets; no longer a public health problem.
• Measles elimination: • In a large geographical area in which
endemic transmission of measles has stopped (< 1 per 10,00,000 population)
• Measles eradication: • Agent no longer exist in country (No cases
for 3 years in presence of good surveillance)
MCQsQ-1 Mortality in Measles is increased
in malnourished children upto 1. 100 times2. 200 times3. 300 times4. 400 times
Answer – 4.
• Q-2 Secondary attack rate is• 1 Occurrence of second attack of a disease• 2 Percentage of contacts developing the
disease • 3 Percentage of susceptible contacts
developing the disease in one incubation period
• 4 All of the above
ANS 3
Q-3 Which of the following diseases have got a cyclic trend
1. Chicken pox 2. Measles3. Poliomyelitis4. Hepatitis B
ANS 2
Q-4 The incubation period of Measles is1. 10 days2. 5 days3. 15 days4. 20 days
ANS 1
Q-5 Secondary attack rate in Measles is
1 >50%2 >60%3 >70 %4 >80%
ANS 4
Q-6 The period of communicability in Measles is1. One week before & one week after the rash has appeared2. 4 days before & 5 days after the rash has appeared3. 5 days before & 4 days after the rash has appeared4. 5 days before & 5 days after the rash has appeared
ANS 2
Q-7 The rash in Measles is
1 Macculo-papular
2 Exanthems
3 Enanthems
4 All of the above ANS 4
Q-8 The rash in Measles first of all appears on
1. Trunk2. Palm & Sole3. Face4. Behind the ears
ANS 4
Q-9 The most common complication of measles in India is
1. Diarrhoea 2. Pneumonia3. Encephalitis4. S.S.P.E.
ANS 1
Q-10 Measles can occur below the age of 6 months only if1. Mother has not been immunized2. Mother did not have measles in childhood3. Mother is HIV positive4. All of the above
ANS 4
Q-11 Hemorrhagic Measles is1. When rash is hemorrhagic2. Synonym with Black Measles3. When there is bleeding from mouth, nose,
or bowel4. All of the above5. 2 &3 are correct6. 1 &3 are correct
ANS 5
Q-12 Which of the following diseases can exacerbate existing tuberculous process
1. Measles 2. Pertusis3. HIV4. All of the above
ANS 4
Q-13 Encephalitis due to Measles can occur in 1. Pre-eruptive stage2. Eruptive stage3. Post-eruptive stage4. All of the above.
ANS 4
Q-14 The efficacy of Measles vaccine is
1 >80%2 < 80%3 95%4 100%
ANS 3
Q-15 Which of the following condition is not a contraindication for the use of Measles vaccine
1. Pregnancy2. Child with untreated
tuberculosis3. Child with Leukaemia4. Child with H.I.V. infection
ANS 4
MCQsQ-16 The rash in Measles first of all
appears on 1. Trunk2. Palm & Sole3. Face4. Behind the ears
Answer – 4.
Q-17 The risk of S.S.P.E. after natural infection of Measles is
1. One in one million2. Seven in one million3. One in seven million4. Seven in seven million
MCQs
Answer – 2.
Q-18 Black Measles is1. When measles is occurring in Blacks2. When the colour of rash is black3. When measles is occurring in Whites &
color of rash is black4. None of the above
MCQs
Answer – 4.