The causes of gender dysphoria are not yet fully understood. A personâs biological sex is determined by two chromosomes â one from the mother, and one from the father.5 Early in pregnancy, all fetuses are female because the X chromosome (which is inherited from the mother) is the only active chromosome.
Paralytic shellfish poisoning (PSP) is one of the four recognized syndromes of shellfish poisoning, which share some common features and are primarily associated with bivalve mollusks (such as mussels, clams, oysters and scallops).he toxins responsible for most shellfish poisonings are water-insoluble, heat and acid-stable, and ordinary cooking methods do not eliminate the toxins. The principal toxin responsible for PSP is saxitoxin.
INFECTIOUS AGENT. Malaria in humans is caused by protozoan parasites of the genus Plasmodium: Plasmodium falciparum, P. vivax, P. ovale, or P. malariae. In addition, P. knowlesi, a parasite of Old World (Eastern Hemisphere) monkeys, has been documented as a cause of human infections and some deaths in Southeast Asia.NFECTIOUS AGENT. Malaria in humans is caused by protozoan parasites of the genus Plasmodium: Plasmodium falciparum, P. vivax, P. ovale, or P. malariae. In addition, P. knowlesi, a parasite of Old World (Eastern Hemisphere) monkeys, has been documented as a cause of human infections and some deaths in Southeast Asia.