The following are true about measles: (A) It is an RNA virus, (B) Causes Koplik's spots on the conjunctiva, (C) Acute catarrhal conjunctivitis is a known features, (D) All the above
Answer is D. Measles is caused by Morbilivirus which comes under paramyxoviridae family(enveloped ,helical,RNA virus).First signs of clinical disease include prodromal malise,fever,conjunctival injection ,cough & nasal discharge .A day or two before the rash begins,Koplik's spots develop on the buccal mucosa & occasionally on the conjunctiva & intestinal mucosa. Reference : Harrison20th edition pg 879