Iflaviruses in arthropods: when small is mighty.

Area of Science:

• Virology
• Arthropod-borne diseases

Background:

• Iflaviruses (family Iflaviridae) primarily infect arthropods.
• Known for causing symptomatic infections in honeybees and silkworms.
• Increasingly detected in mass-reared insects (crickets, flies) relevant to food, feed, and biological control.

Purpose of the Study:

• To review current research on iflaviruses.
• Focus on host range, viral characteristics, infection dynamics, and impacts.
• Examine both overt (symptomatic) and covert (asymptomatic) infections.

Main Methods:

• Literature review of recent iflavirus research.
• Synthesis of findings on viral biology and host interactions.
• Analysis of iflavirus effects on host fitness and behavior.

Main Results:

• Iflaviruses infect a broad range of arthropod species, not just insects.
• Covert infections are common and can incur fitness costs.
• Iflaviruses impact host immune responses, microbial interactions, and behavior.

Conclusions:

• Iflaviruses represent a significant, often overlooked, viral group in arthropods.
• Understanding iflavirus biology is crucial for agriculture, food security, and pest management.
• Further research is needed on the long-term impacts of covert infections.