Contents: Contacts of smear positive pulmonary tuberculosis in the Northern Territory, 2014-2017; Territory working towards a TB-free world. World TB Day 24 March 2018; Latent tuberculosis infection (LTBI) fact sheet; Pilot study—Is video microscopy effective in diagnosis of crusted scabies?; An outbreak of toxin-mediated gastroenteritis following Christmas parties at a hotel in Alice Springs, December 2017; When a drain does not drain-mosquito breeding investigation in 2 Darwin suburbs in 2016; An audit of influenza vaccination rates in patients aged between 3 and 70 years old with recently diagnosed rheumatic heart disease. Are patients receiving care in line with national guidelines?; New influenza vaccine for people aged 65 years and over in 2018; Territory influenza in 2017; worst since 2009; Meningococcal W update, March 31 2018; NT syphilis outbreak…..No downfall yet!; A comparative lens on sexual health: Lessons from syphilis outbreaks in Australia and Canada; Abstracts from peer reviewed published articles related to the Northern Territory; Northern Territory notifications of disease by onset date and district; Graphs of selected diseases and STIs; Comments on notifications; Northern Territory malaria notifications; Immunisation coverage; Disease Control staff updates