Introduction:
Pathogenic bacteria are microorganisms that can cause diseases in humans and animals. They can enter the environment through various sources and cause serious health hazards.

Primary Entry of Pathogenic Bacteria:
The primary entry point for pathogenic bacteria is through domestic wastes. Domestic wastes are generated from households, hospitals, schools, and other institutions. These wastes contain human excreta, urine, and other biological waste that can carry a variety of pathogenic bacteria.

Sources of Domestic Wastes:
Domestic wastes can come from various sources such as:

1. Households: Domestic wastes from households include kitchen waste, sewage, and garbage.

2. Hospitals: Medical wastes, such as discarded syringes, bandages, and other medical equipment, can carry pathogenic bacteria.

3. Schools and Institutions: Waste generated from schools and institutions can contain human excreta, urine, and other biological waste.

Impact of Domestic Wastes:
The impact of domestic wastes on the environment can be detrimental. If not disposed of properly, domestic wastes can contaminate the soil and water sources. This can lead to the spread of diseases such as cholera, typhoid, and dysentery.

Conclusion:
Therefore, it is important to properly dispose of domestic wastes to prevent the entry of pathogenic bacteria into the environment. Proper sewage treatment and disposal systems can help to prevent the spread of diseases and maintain a healthy environment.

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