ANATOMY

Detailed explanation-1: -Obligate pathogens are found among bacteria, including the agents of tuberculosis and syphilis, as well as protozoans (such as those causing malaria) and macroparasites. Some obligate pathogens require multiple different hosts to fulfil their life cycle.

Detailed explanation-2: -What are pathogens? Pathogens include viruses, bacteria, fungi, and parasites that invade the body and can cause health issues. Anthrax, HIV, Epstein-Barr virus, and the Zika virus, among many others are examples of pathogens that cause serious diseases.

Detailed explanation-3: -Many types of pathogens cause disease in humans. The most familiar are viruses and bacteria. Viruses cause diseases ranging from AIDS and smallpox to the common cold.

Detailed explanation-4: -A pathogenic organism is an organism which is capable of causing diseases in a host (person) [2]. The World Health Organization (WHO) listed among hazards that may be present in food potentially harmful bacteria, viruses, toxins, parasites and chemicals.

Detailed explanation-5: -Viruses. Viruses are made up of a piece of genetic code, such as DNA or RNA, and protected by a coating of protein. Bacteria. Bacteria are microorganisms made of a single cell. Fungi. There are millions of different fungal species on Earth. Parasites.