Virology Flashcards
(20 cards)
How are measles, rubella and mumps spread
Droplets (airborne)
Most common presentation of mumps
Parotitis (swelling of cheek due to parotid gland swelling)
The characteristic feature of Rubella
Koplic spots (sugar grains found in inner cheek)
Out of measles, rubella and mumps which is most servere in terms of complications and symptoms
Rubella
- generally unwell with cough, conjunctivitis, koplic spots
- complication: sensorineural hearing loss, meningitis, encephalitis
x is important in pregnant women especially if dont have natural immunity or vaccinated
Rubella
* if transferred to foetus > leads to congenital rubella syndrome (58% get deafness & 50% congenital heart disease)
Management of rubella infection in a pregnant woman with no natural immunity or vaccine
Abortion
Virus causing measles and mumps
Paramyxovirus
Virus causing rubella
Togavirus
Slapped cheek disease/5th disease is caused by
Parovirus
Presents with lace- like rash on extremities with characteristic redness on cheek
MMR is given at
~1 year and 3 yrs &4 month
Incubation period for MR (mumps and rubella)
14- 21 days
& measles 7-18 days
Infectious period for measles
4 days before and 4 days after rash onset
Infectious period for mumps
7 days before and after rash
Infectious period for rubella
7 days before and 4 days after
meaning of incubation period
Period between exposure and onset of clinical symptoms
infectious period
Time during which someone with an infection can transmit the infection to someone else.
transmission of chicken pox
Droplets or direct contact with lesion
infectious period of chicken pox
2 days before vesicles appear and ends when last vesicle crust over
Incubation period = 10-21 days
Chickenpox usually occurs between ages
1 - 6 years
Treatment of chickenpox for children
- self limiting - can give something for fever (paracetamol -avoid NSAID / itchiness - topical calamine lotion or chlorpheniramine if >1
- Consider antivirals if immunocompromised, neonate or at risk of complication (usually send to A&E)