Some, in particular HIV and syphilis, can also be passed in other ways, including from mother to child during pregnancy and childbirth , through blood products , and by shared hypodermic needles. Hormonal changes are known to alter taste and smell, which might explain the desire for specific, sometimes unusual foods. Cravings for chocolate may indicate a magnesium or vitamin B deficiency. The term coitus is derived from the Latin word coitio or coire, meaning "a coming together or joining together" or "to go together", and it describes a variety of sexual activities under ancient Latin names, but usually refers exclusively to penile—vaginal penetration. Untreated gonococcal infections result in miscarriages , preterm births and perinatal deaths. Those with ID may have hesitations regarding the discussion of the topic of sex, a lack of sexual knowledge and limited opportunities for sex education. Intravaginal ejaculation latency time and Coitus reservatus Sexual intercourse, when involving a male participant, often ends when the male has ejaculated, and thus the partner might not have time to reach orgasm. While these cravings might be for a specific type of cuisine or an unusual food, they typically include the desire for sweet, salty, spicy or fatty foods. There remains a lack of "dialogue around this population's human right to consensual sexual expression, undertreatment of menstrual disorders, and legal and systemic barriers". Infants born to mothers with untreated gonorrhea or chlamydia can develop neonatal conjunctivitis a serious eye infection , which can lead to blindness. Condoms are widely recommended for the prevention of sexually transmitted infections STIs. Women with ID may lack sexual health care and sex education. The World Health Organization also stated that the "estimated 1. Reviewed by Mary D.