Infectious Diseases Specialist Doctor In Mumbai Infectious diseases are extremely common worldwide. Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi; the diseases can be spread, directly or indirectly, from one person to another. Some infections can be spread in more than one way. The most common way, by which we can get an infectious disease, is by person to person spread. The microorganisms can spread from person to person through: the air as droplets or aerosol particles, faecal-oral spread, blood or other body fluids, skin or mucous membrane contact and sexual contact. Some diseases are not passed on from person to person, but through contact with other environmental sources such as food, water, animals, insects or soil. Infectious diseases like HIV/AIDS, malaria and tuberculosis are still a leading cause of death in low-income countries. COVID 19, a newly emerged infectious disease, caused by the virus SARS-CoV-2, became one of the leading cause of death in 2020. According to data analysed by the Centres for Disease Control and Prevention (CDC), COVID-19 was listed as the third leading cause of death during 2020 in the United States, behind heart disease and cancer. Infectious disease doctors are involved in diagnosing, investigating and treating patients with all types of infections like chest infections, urinary tract infection, HIV, Hepatitis B, Hepatitis C, Surgical Site infections, bones & amp; joints infections, brain infections, any abdominal infections and tropical infections like malaria, typhoid, dengue, scrub typhus, chikungunya and leptospirosis. This growing speciality combines both clinical and laboratory practice. There is a mix between acutely unwell and chronically ill patients. There has been a surge in antibiotic resistance due to the misuse and overuse of them. The prevalence of hospital acquired infections have increased. The growing popularity of international travel has expanded travel-related diseases and the need for expert knowledge in that area. Due to the increasing population age and associated frailty of patients, the severity of infections has also increased. All the above factors have increased the demand and role of infectious diseases (ID) specialist. Whenever there is a fever, that is not responding to medications in an acceptable timeframe, when an infection is potentially serious, or when problems occur with treatment, it may be necessary to consult an infectious diseases specialist. ID specialists can provide special insight into tests that will be helpful in diagnosing and understanding the infection and preventing recurrent infections. They can often help determine what treatment you need, if any, and whether you should receive antibiotics. ID specialists may work in a clinic or hospital, and patients are also referred to them by a wide variety of medical and surgical departments for management of complicated infections. At an organizational level, ID specialists play major roles in infection control and antimicrobial and diagnostic stewardship programs, as well as in education and support of critical clinical programs. The role of an infectious diseases physician on the health care team helps to ensure patients receive the highest level of care. The studies have demonstrated that relative to others, patients with early infectious diseases specialist involvement had shorter lengths of stay, lower costs, and lower mortality rates during their hospital stay. In fact even after discharge, these patients experienced a lower likelihood of readmission and lower total healthcare costs over the next 30 days as per the studies.  Infection prevention, vaccination especially for adults, travel related health guidance and antimicrobial stewardship programs represent infectious diseases specialist–led population health programs, where ID specialists provide essential value to healthcare systems. The general population can also contribute to prevention and proper management of infectious diseases by washing hands with soap and water, thoroughly and frequently, covering nose and mouth while sneezing or coughing, avoiding sharing of personal items, getting adequately vaccinated, avoiding contact with wild animals, handle & amp; prepare food safely, clean and disinfect commonly used surfaces, ask for medical help from qualified health professionals and always ask their respective doctors, whether they really need to be prescribed an antibiotic.