| CHICKENPOX | An infectious disease usually occurring in childhood also called varicella (10) |
| MEASLES | An infectious viral disease causing fever and a red rash, usually occurring in childhood (7) |
| TETANUS | Acute infectious disease usually occurring through a contaminated wound (7) |
| FIFTHDISEASE | Mild infectious illness of childhood, also called slapped cheek syndrome (5,7) |
| POX | Chicken ___ (viral disease also called varicella) |
| PLAYFELLOW | Companion in childhood (10) |
| SIROCCO | A hot oppressive and often dusty wind usually occurring in spring, beginning in north Africa (7) |
| STREPTOCOCCUS | Spherical bacteria usually occurring in chains which can cause various infections (13) |
| CJD | Rare (usually fatal) brain disease (usually in middle age) caused by an unidentified slow virus. |
| CROUP | A throat condition, usually occurring in children, characterised by a hoarse cough and laboured breathing (5) |
| PERTUSSIS | Official name of the highly contagious disease usually called whooping cough (9) |
| GERMANMEASLES | An infectious disease also called rubella (6,7) |
| CONTACT | Neologism for the process of identifying those who have been near a person with an infectious disease, included in the OED in 2020 (7,7) |
| IMMUNISE | To protect someone against a disease, usually by inoculation (8) |
| RABIES | Acute viral disease, usually transmitted by the bite of a rabid animal (6) |
| PATHOGEN | Agent in an infectious disease thriller film |
| MALARIA | An infectious disease caused by the bite of an infected mosquito (7) |
| EPIDEMIC | Widespread occurrence of an infectious disease in a community (8) |
| MEASLY | It's miserable, suffering from a disease in childhood? (6) |
| MEASLE | It's miserable, suffering from a disease in childhood? (6) |
