Cutaneous warts, also called verrucae, are benign proliferations of skin caused by human papillomavirus (HPV).
Most common warts on the hands and feet are due to HPV types 1, 2, 4, 27 & 57.
HPV is usually transmitted by contact with skin of an infected individual or by transmission of virus living in warm moist environment.
Autoinoculation may occur from traumatizing lesions by biting or scratching.
Incubation period is unknown but may range from months to years.
The substitution of isoleucine to leucine at amino acid 97 (I97L) in the core region of the hepatitis B virus (HBV) seems to reduce its potency, decreasing the efficiency of both infection and the synthesis of the virus’ covalently closed circular (ccc) DNA, reports a new study presented at The Liver Meeting Digital Experience by the American Association for the Study of Liver Diseases (AASLD 2020).
A trial vaccine for the prevention of COVID-19 is underway with the first US participants being dosed in the Phase 1/2 clinical trial. Known as the BNT162 vaccine programme, the trials are a collaboration between Pfizer Inc. and BioNTech SE, and is part of a global development programme with Germany and the US taking the lead in having the first cohorts to be vaccinated. Germany started the study 1 week earlier.
Rinsing with mouthwash that contains povidone-iodine (PI) or cetylpyridinium chloride (CPC) helps reduce SARS-CoV-2 levels in the saliva of COVID-19 patients, with the effect persisting for up to 6 hours, as shown in a study from Singapore.