A. Foot-and-mouth disease
B. COVID-19
C. H5N1 Bird Flu
D. Dengue Fever

Detailed Explanation:

Australian authorities warned about the spread of H5N1 bird flu among wildlife, particularly seabirds and sea lions, increasing biosecurity monitoring across affected regions.

Important Exam Facts

• Disease: H5N1 Avian Influenza.
• It affects birds and some mammals.
• Australia increased wildlife monitoring.
• Biosecurity remains a national priority.

Related Questions & Quick Answers

• What does H5N1 refer to? — Avian Influenza (Bird Flu).
• Which animals were closely monitored? — Seabirds and sea lions.
• What is biosecurity? — Measures to prevent the spread of diseases.
• Can bird flu affect humans? — In rare cases, yes.
• Which country reported H5N1 concerns? — Australia.