Chronic hepatitis D coinfection affects an estimated 12 million people globally, with higher prevalence in low-income and middle-income countries, especially the African and Western Pacific regions.

Beyond both being viruses, HIV-1 and SARS-CoV-2 don't seem to have a lot in common. HIV-1 is a retrovirus that integrates ...

With summer temperatures giving way to cooler weather, you may see fewer mosquitoes buzzing about. But experts say August and September is when mosquitoes are most likely to carry West Nile virus.