Bacterial and Viral Sexually Transmitted Infections.

Nov 15, 2025

Journal Pharaonic Journal of Science

DOI https://doi.org/10.71428/PJS.2025.0211

Volume 1

There are two terms often used interchangeably, Sexually Transmitted Infection (STI) and Sexually Transmitted Disease (STD), but in fact, they are different. STI is infection that can lead to STDs, so every STD is preceded by an STI but not every STI leads to STD severe reproductive complications can result from STDs, including congenital infection, infertility, and ectopic pregnancy. In addition, STDs can increase the chance of acquiring and transmitting Human Immunodeficiency Virus (HIV) infection. STIs or STDs typically result from sexual contact, and the causative agents can be bacteria, parasites, or viruses. The most prevalent STDs are viral infections, as they are treatable but not curable. Symptoms vary according to the viral type and range from skin lesions and warts to immune deficiency and cancer. The treatment of infections that are transmitted sexually relies on the infection type. It is important for sexually active members at higher risk to undergo regular screenings. Neglecting the use of condoms represents a significant risk of infection.

Evaluation of the resistance of CuO-coated contact lenses to bacterial contamination.

Sep 22, 2021

Journal Journal of Physics : Conference Series

Publisher IOP publishing LTD

DOI DOI 10.1088/1742-6596/1999/1/012035

Volume 1999

The main aim of this research was to prepare an antibacterial coating on the surface of Contact Lenses (CL) by using copper oxide nanoparticles (CuO NPs) and assessment the activity of these nanoparticles to reduce the attachment of bacteria on the lenses. For coating we used an immersion method with three different solutions Ethyl alcohol 99%, Oil and lenses solution and dispersed CuO nanoparticles at different concentrations (100ppm, 200ppm and 300ppm).Two immersion methods were used to prepare coating 1-immersion for 5 minutes in ethanol and contact lens solution .2-double dipping method for 5 seconds for each turn used with oil solution .The coated lenses was examined by scanning electron microscope and also was incubated with two different bacteria: Staphylococcus aureus and Pseudomonas aeruginosa for 24hrs, 72hrs and 30 days at 37 0 C. In this study another aim was preceded by testing the ability of the two bacterial types to form biofilm by tube and Congo red agar methods.