Protist diseases

• Pathogens are disease-causing viruses, bacteria, fungi or protists, which can infect animals and plants.
• Humans have an immune system, which can defend them from pathogens.
• Protists are a group of microorganisms that have features that belong to animals, plants and fungi.
• Fungi are a large group of eukaryotic organisms that contain single-celled yeasts, moulds and mushrooms.
• Eukaryotes are single-celled organisms or cells of multicellular organisms that have a nucleus.
• Malaria is a potentially fatal disease spread by mosquitoes.
• Mosquitos are organisms that can spread a disease because they transmit the disease.
• The symptoms of malaria include a fever, sweats and chills, headaches, vomiting and diarrhoea.
• Up to half of the 200 million people infected each year with malaria die from the disease.
• Vaccines are substances containing disabled antigens of a particular disease, usually administered via injection.
• Vaccines stimulate the body to produce antibodies to provide immunity against that disease.
• Infection can only be prevented by stopping individuals from being bitten.
• People sleep under mosquito nets and wear insect repellent to avoid bites.
• Antimalarial drugs are medicines that stop or treat a malarial infection.
• Antimalarial drugs treat the symptoms and can prevent infection.