(a(i))[1]
Name the pathogen responsible for measles.
(a(ii))[3]
Describe how the measles pathogen is transmitted.
(b)[3]
Fig. 5.1 shows the number of cases of measles globally each month between January 2015 and March 2019. Describe the pattern of measles cases as shown in Fig. 5.1.
(c)[4]
Explain why measles has still not been eradicated even though a vaccine has been available since the 1960s.