What are the various public health measures,which you would suggest as a safeguard against infectious diseases?

(N/A) Public health measures are preventive actions taken to check the spread of various infectious diseases. These measures aim to reduce contact with infectious agents. Key methods include:
$1$. Maintenance of personal and public hygiene: This is crucial for preventing infectious diseases. It includes maintaining a clean body,consuming healthy and nutritious food,and drinking clean water. Public hygiene involves the proper disposal of waste and excreta,and periodic cleaning and disinfection of water reservoirs.
$2$. Isolation: To prevent the spread of air-borne diseases such as pneumonia,chickenpox,and tuberculosis,it is essential to keep the infected person in isolation to reduce the chances of transmission.
$3$. Vaccination: Vaccination protects the body from communicable diseases by administering agents that mimic microbes. It helps in providing immunity to the body. Vaccines are available for diseases like tetanus,polio,measles,and mumps.
$4$. Vector Eradication: Diseases such as malaria,filariasis,dengue,and chikungunya spread through vectors. These can be prevented by maintaining a clean environment and preventing mosquito breeding. This includes avoiding stagnant water,regular cleaning of coolers,using mosquito nets,and applying insecticides like malathion in drains and ponds. Introducing fish such as $Gambusia$ in ponds also controls mosquito larvae.