Which phrase accurately characterizes sexually transmitted infections (stis)?
are caused by bacteria, viruses, or parasites
always cause visible symptoms
are rarely transmitted by sexual contact
can be contracted only by women

are caused by bacteria, viruses or parasites

are caused by bacteria, viruses, or parasites

Explanation:

The sexually transmitted infections are those pathogenic infections that are caused due to sexual contact. These infections are caused due to microbes like bacteria, parasite and virus that are transferred from the infected to the uninfected person through sexual intercourse.

The blood, semen and the vaginal fluids are the common carriers of these pathogens. The following are the specific infections related to a pathogen.

Bacteria may cause syphilis, parasite may cause trichomoniasis and virus may cause genital herpes and HIV.

answercobra of 1985;