Close contacts of cases of meningococcal disease are at increased risk of disease themselves.
We identified household-like contacts of index cases, to investigate whether relevant target
groups are informed, receive and follow recommended chemoprophylaxis and vaccination, and
to ascertain the time delay for implementation of these measures. A telephone interview of 172
households of index cases and a questionnaire survey among 634 parents of contacts of cases
in institutions were carried out. Results were compared with reports from Medical Officers of
Health. In 21% of the cases, Medical Officers reported fewer household-like contacts than were
identified in this study. Written information was effective. However, 59% of households, and
36% of parents of contacts in institutions felt a lack of information about how the disease is
acquired, the risk and signs of illness. For household-like contacts the coverage rate for
chemoprophylaxis with an appropriate drug was 90% and for vaccination 59%. No secondary
cases occurred among those treated with chemoprophylaxis, but among those not treated, there
were two secondary cases. The study design provided a useful audit methodology to evaluate
the completeness of implementation and the success of prophylactic measures for
meningococcal disease.