Consistent viral DNA quantification after prolonged storage at ambient temperature.

Area of Science:

• Virology
• Molecular Biology
• Public Health

Background:

• Low-temperature storage of biological specimens is expensive and difficult in resource-limited areas.
• Chronic viral infections, such as those caused by human herpesvirus 8 (HHV-8), disproportionately affect these regions.
• Efficient and cost-effective methods are crucial for studying viral diseases in vulnerable populations.

Purpose of the Study:

• To determine if cold storage is essential for preserving human herpesvirus 8 (HHV-8) DNA in swab samples.
• To compare HHV-8 DNA quantities in samples stored at different temperatures over an extended period.
• To identify practical storage solutions for HHV-8 research, particularly in resource-limited settings.

Main Methods:

• Collected swab samples for HHV-8 DNA analysis.
• Stored samples for 9-11 months at -20 °C, 4 °C, and 37 °C.
• Quantified HHV-8 DNA levels before and after storage using molecular techniques.

Main Results:

• Quantitative levels of HHV-8 DNA remained consistent in both laboratory and mucosal swab samples.
• No significant degradation of HHV-8 DNA was observed across the tested storage temperatures (-20 °C, 4 °C, 37 °C).
• Storage temperature did not impact the reliability of HHV-8 DNA quantification.

Conclusions:

• Cold storage, including freezer temperatures, is not necessary for the accurate quantification of HHV-8 DNA from mucosal swab samples.
• These findings offer a more practical and cost-effective approach for HHV-8 research.
• Simplifying sample storage can enhance viral disease research capacity in resource-limited settings.