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What are the planktonic bacteria in the air?
What are the planktonic bacteria in the air?
Airbrone Microbe actually refers to all kinds of microorganisms floating in the air, including viruses, rickettsiae, bacteria, fungi, protozoa, etc. These microorganisms are generally invisible to the naked eye. They are more or less Less has an impact on human health.
Viruses
Viruses are the smallest microorganisms, ranging in size from 0.008μm to 0.3μm. They are living organisms that live on cells. For example, influenza virus, hepatitis B virus, HIV, SARS virus, almost no need to introduce, everyone has heard too much.
Rickettsia
This is an organism whose size is between viruses and bacteria. It also parasitizes other cells, mainly pathogens of typhoid fever and tsutsugamushi. Rickettsia is proliferated in the cells of arthropods such as lice, and exists in large amounts in their feces. When humans and animals are bitten by lice with rickettsia, they are prone to disease.
Bacteria
Bacteria are also familiar to everyone. Their size ranges from 0.5 μm to 100 μm. According to their shape, they are divided into coccus, rod-shaped, and spiral-shaped bacteria. Bacteria mainly rely on invading cells or tissues to produce toxins, and make the human body disease. Bacteria are the pathogens of many diseases. For example, Legionnaires' disease, tuberculosis, gonorrhea, anthracnose, syphilis, plague, trachoma, stomach disease, etc., are all caused by bacteria.
Fungus
There are more than 70,000 kinds of fungi known on the earth, the most common is mushrooms, but what we are referring to here are some tiny fungi that affect the human body. At present, the pathogenic fungi found are mainly molds, and there are about three hundred kinds, such as Aspergillus flavus, Candida, etc. Fungal infections can cause skin diseases and invasive fungal infections, such as various tinea corporis and pulmonary spores. Mycosis, aspergillosis, cryptococcosis, etc.
Protozoa
Protozoa are also called protozoa, generally ranging in size from 1 μm to several millimeters. They are roughly divided into flagellates, fleshy species, spores and trichomoniasis, and they live mainly on parasites. Protozoa enter the human body, and some are disease-causing, such as kala-azar, trypanosomes, dysentery amoeba, and malaria parasites.
In addition to the above introduction, there are some microorganisms that are also harmful to the human body, such as dust mites, pet fouling, and various allergens, which are abundant in human living spaces.