Dr Suretha Kannenberg holds a degree in Medicine and a Masters in Dermatology from the University of Stellenbosch. She is employed as a consultant dermatologist by Stellenbosch University and Tygerberg Academic Hospital, where she is involved in clinical duties and the training of medical students and dermatology residents. Her areas of interest and research include vitiligo, eczema and acne. She also performs limited private practice work in the Northern suburbs of Cape Town in general and cosmetic dermatology. This forum is closed until further notice .
The quantitative relationship between the in vitro susceptibility of herpes simplex virus (HSV) and varicella-zoster viruses (VZV) to acyclovir and the clinical response to therapy has not been established in man, and virus sensitivity testing has not been standardized. Sensitivity testing results, expressed as the concentration of drug required to inhibit by 50% the growth of virus in cell culture (ID50), vary greatly depending upon the particular assay used, the cell type employed, and the laboratory performing the test. The ID50 of acyclovir against HSV-1 isolates may range from μg/mL (plaque reduction in Vero cells) to - μg/mL (plaque reduction in green monkey kidney [GMK] cells). The ID50 against HSV-2 ranges from to μg/mL (plaque reduction in Vero and GMK cells, respectively).
Syphilis is a serious disease that leads to blindness, heart disease, nervous disorders, insanity, tumors and even death. It has three stages. First stage: painless sore may appear at the spot where the bacteria first entered the body, usually 10 to 90 days after sexual contact. This sore may appear around or in the vagina or on the penis or inside the mouth or anus. Sores inside the anus or vagina are often unnoticed and may disappear on their own if not treated, but the infection remains. Stage Two: occurs 3 weeks to 6 months after stage one. Flu-like symptoms and possible hair loss are primary. Rash with infectious spots are also associated with stage two. Although extremely rare tertiary syphilis can appear 3 to 10 years or more after stage one and two. Symptoms of this stage include skin lesions, mental deterioration, loss of balance and vision, loss of sensation, shooting pains in the legs and heart disease.