diff --git a/solution_architecture.md b/solution_architecture.md
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--- a/solution_architecture.md
+++ b/solution_architecture.md
@@ -29,7 +29,7 @@ Assuming a close association of a mobile phone and its user, we equate the devic
 
 ## INTRODUCTION
 
-To reduce the spread of [COVID-19](https://www.ecdc.europa.eu/en/covid-19-pandemic) it is necessary to inform people about their close proximity to positively tested individuals. So far, health departments and persons identified these in personal dialogues based on people’s memory, which led to a high number of unknown connections, e.g. when using public transport. 
+To reduce the spread of [COVID-19](https://www.ecdc.europa.eu/en/covid-19-pandemic) it is necessary to inform people about their close proximity to positively tested individuals. So far, health departments and affected individuals identified these in personal dialogues based on people’s memory, which led to a high number of unknown connections, e.g. when using public transport. 
 
 ![Figure 1: High-level architecture overview](images/solution_architecture/figure_1.svg "Figure 1: High-level architecture overview")