Syphilis is an infectious disease.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2016). The mark or mark type is shown in brackets.

1. [1] (caused by a) pathogen/bacteri(a)(um);
2. [1] during sexual;
3. [1] contact/intercourse AW;
4. [1] mother to baby during birth;
5. [1] symptoms described ;
6. [1] reference to effect of named organ destruction ;
7. [1] reference to effect on fetus ;
8. [1] leading to death (if untreated) ;
9. [1] (syphilis treated using) antibiotics;
10. [1] AIDS/it is caused by virus/HIV;
11. [1] (virus) unaffected/destroyed by antibiotics/bacteria only killed/treated by antibiotics;