Publication date: Jul 01, 2026
Antivirals for mild-to-moderate coronavirus disease 2019 (COVID-19) were adopted for use based on trials in unvaccinated adults during the pre-Omicron period. In today’s broadly immune populations, where the risk of hospitalisation and death has decreased substantially, there is a lack of high-quality contemporary evidence to support routine antiviral use for mild-to-moderate disease. Comparing the Australian and New Zealand experiences in the evolving COVID-19 landscape highlights differences in policy and prescribing practice. Treatment guidelines should be informed by systematic evaluation of emerging data, given uncertainty regarding antiviral effectiveness in a context of widespread immunity and milder disease, which have altered the balance of risks and benefits.

Semantics
| Type | Source | Name |
|---|---|---|
| disease | MESH | COVID-19 |
| drug | DRUGBANK | Nonoxynol-9 |
| disease | MESH | death |
| drug | DRUGBANK | Isoxaflutole |
| disease | MESH | Coronavirus Infections |
| disease | MESH | Pneumonia Viral |