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Cholera is an infection of the small intestine by some strains of the bacterium Vibrio cholerae. Symptoms may range from none, to mild, to severe. The classic symptom is large amounts of watery diarrhea that lasts a few days. Vomiting and muscle cramps may also occur. Diarrhea can be so severe that it leads within hours to severe dehydration and electrolyte imbalance. This may result in sunken eyes, cold skin, decreased skin elasticity, and wrinkling of the hands and feet. Dehydration can cause the skin to turn bluish. Symptoms start two hours to five days after exposure.
A quarantine is a restriction on the movement of people, animals and goods which is intended to prevent the spread of disease or pests. It is often used in connection to disease and illness, preventing the movement of those who may have been exposed to a communicable disease, yet do not have a confirmed medical diagnosis. It is distinct from medical isolation, in which those confirmed to be infected with a communicable disease are isolated from the healthy population. Quarantine considerations are often one aspect of border control.
John Snow was an English physician and a leader in the development of anaesthesia and medical hygiene. He is considered one of the founders of modern epidemiology, in part because of his work in tracing the source of a cholera outbreak in Soho, London, in 1854, which he curtailed by removing the handle of a water pump. Snow's findings inspired the adoption of anaesthesia as well as fundamental changes in the water and waste systems of London, which led to similar changes in other cities, and a significant improvement in general public health around the world.
Bruhat Bengaluru Mahanagara Palike (BBMP) is the administrative body responsible for civic amenities and some infrastructural assets of the Greater Bengaluru metropolitan area. It is the fourth largest Municipal Corporation in India and is responsible for a population of 8.4 million in an area of 741 km2. Its boundaries have expanded more than 10 times over the last six decades.
The Broad Street cholera outbreak was a severe outbreak of cholera that occurred in 1854 near Broad Street in Soho, London, England, and occurred during the 1846–1860 cholera pandemic happening worldwide. This outbreak, which killed 616 people, is best known for the physician John Snow's study of its causes and his hypothesis that germ-contaminated water was the source of cholera, rather than particles in the air. This discovery came to influence public health and the construction of improved sanitation facilities beginning in the mid-19th century. Later, the term "focus of infection" started to be used to describe sites, such as the Broad Street pump, in which conditions are favourable for transmission of an infection. Snow's endeavour to find the cause of the transmission of cholera caused him to unknowingly create a double-blind experiment.
Lakes and tanks in the metropolitan area of Greater Bangalore and the district of Bangalore Urban are reservoirs of varying sizes constructed over a number of centuries by various empires and dynasties for rainwater harvesting. Historically, these reservoirs were primarily either irrigation tanks or for the water supply, with secondary uses such as bathing and washing. The need for creating and sustaining these man-made dammed freshwater reservoirs was created by the absence of a major river nearby coupled with a growing settlement. As Bangalore grew from a small settlement into a city, both of the primary historical uses of the tanks changed. Agricultural land witnessed urbanization and alternate sources of water were provisioned, such as through borewells, piped reservoir water and later river water from further away.
Bellandur Lake is located in the suburb of Bellandur in the southeast of the city of Bengaluru. It is the largest lake in the city. It is a part of Bellandur drainage system that drains the southern and the south-eastern parts of the city. The lake is a receptor from three chains of lakes upstream, and has a catchment area of about 148 square kilometres. Water from this lake flows further east to the Varthur Lake, from where it flows down the plateau and eventually into the Pinakani river basin.
Seven cholera pandemics have occurred in the past 200 years, with the first pandemic originating in India in 1817. The seventh cholera pandemic is officially a current pandemic and has been ongoing since 1961, according to a World Health Organization factsheet in March 2022. Additionally, there have been many documented major local cholera outbreaks, such as a 1991–1994 outbreak in South America and, more recently, the 2016–2021 Yemen cholera outbreak.
Bangalore, officially Bengaluru, is the capital and largest city of the southern Indian state of Karnataka. It has a population of more than 8 million and a metropolitan population of around 11 million, making it India's third most populous city and fifth most populous urban agglomeration, as well as South India's second-largest urban agglomeration, and the 27th largest city in the world. Located on the Deccan Plateau, at a height of over 900 m (3,000 ft) above sea level, Bangalore has a pleasant climate throughout the year, with its parks and green spaces earning it the reputation of India's "Garden City". Its elevation is the highest among India's major cities.
The 2014 Odisha hepatitis outbreak was an outbreak of mainly Hepatitis E and also Hepatitis A which began in the town of Sambalpur in Odisha, India. The cause of the outbreak was suspected to be the contamination to drinking water supplied by the Public Health Engineering Department (PHED).
An outbreak of cholera began in Yemen in October 2016. The outbreak peaked in 2017 with over 2,000 reported deaths in that year alone. In 2017 and 2019, war-torn Yemen accounted for 84% and 93% of all cholera cases in the world, with children constituting the majority of reported cases. As of November 2021, there have been more than 2.5 million cases reported, and more than 4,000 people have died in the Yemen cholera outbreak, which the United Nations deemed the worst humanitarian crisis in the world at that time. However, the outbreak has substantially decreased by 2021, with a successful vaccination program implemented and only 5,676 suspected cases with two deaths reported between January 1 and March 6 of 2021.
The first case of the COVID-19 pandemic in Kerala was confirmed in Thrissur on 30 January 2020. As of 5 April 2022, there have been 65,34,352 confirmed cases, test positivity rate is at 2.04%, with 64,62,811 (98.91%) recoveries and 68,197 (1.04%) deaths in the state.
The first case of the COVID-19 pandemic in the Indian state of Karnataka was confirmed on 8 March 2020. Two days later, the state became the first in India to invoke the provisions of the Epidemic Diseases Act, 1897, which was set to last for a year, to curb the spread of the disease. As of 25 October 2022, Karnataka has 40,01,655 confirmed cases and 40,097 deaths. with 39,52,381 recoveries and 9,135 active cases.
The first confirmed case relating to the COVID-19 pandemic in Yemen was announced on 10 April 2020 with an occurrence in Hadhramaut. Organizations called the news a "devastating blow" and a "nightmare scenario" given the country's already dire humanitarian situation.
The Indian state governments have responded to the COVID-19 pandemic in India with various declarations of emergency, closure of institutions and public meeting places, and other restrictions intended to contain the spread of the virus. A comparative analysis on subnational responses in India finds that the response varied across the states, with varied levels of success, and that a successful pandemic response depended partly on the quality of health infrastructure but more significantly on factors such as local governance, community engagement, and decisive leadership.
Countries and territories in South Asia have been affected by the COVID-19 pandemic. The first South Asian country to report a confirmed case was Nepal, which documented its first case on 23 January 2020, in a man who had returned from Wuhan on 9 January. As of 2 July, at least one case of COVID-19 has been reported in every country in South Asia. Afghanistan, Bangladesh, Pakistan and Maldives have implemented lockdowns, Sri Lanka has responded with quarantine curfews while India and Nepal have declared a country-wide lockdown. Countries have also instituted various levels of restrictions on international travel, some countries have completely sealed off their land borders and grounded most international flights.
A Tablighi Jamaat religious congregation that took place in Delhi's Nizamuddin Markaz Mosque in early March 2020 was a COVID-19 super-spreader event, with more than 4,000 confirmed cases and at least 27 deaths linked to the event reported across the country. Over 9,000 missionaries may have attended the congregation, with the majority being from various states of India, and 960 attendees from 40 foreign countries. On 18 April, 4,291 confirmed cases of COVID-19 linked to this event by the Union Health Ministry represented a third of all the confirmed cases of India. Around 40,000 people, including Tablighi Jamaat attendees and their contacts, were quarantined across the country.
The first COVID-19 case in the Indian state of Bihar was reported in Munger on 22 March 2020, a 38-year-old tested positive for COVID-19, he was also the first victim. He had travel history to Qatar. The Ministry of Health and Family Welfare has confirmed a total of 62,031 cases as of 4 August 2020, including 20,922 active cases, 349 deaths and 40,760 recoveries. The virus has spread in 38 districts of the state, of which Patna district has the highest number of cases.
In early December 2020, an acute neurological disease broke out in Eluru, a city located in the southern Indian state of Andhra Pradesh. The first case was reported on 5 December, with hundreds more falling ill and one person dying over the next week. The cause was initially unknown, but on 20 December, AIIMS and NEERI Research Institute came to a conclusion that pesticides leaching into the water supply is the most likely reason.
The 2015 Bruhat Bengaluru Mahanagara Palike election was held on 22 April 2015 in all 198 Wards of Bangalore (Bengaluru).
References
- 1 2 3 4 "Amid coronavirus scare, Cholera-like gastro disease on rise in Bengaluru". The New Indian Express. Retrieved 16 March 2020.
- 1 2 3 "Cholera comes to Bengaluru: Civic body confirms 7 cases, more in private hospitals". The Indian Express. 9 March 2020. Retrieved 16 March 2020.
- ↑ "Bengaluru Civic Body to Evict Street Vendors After City Records 17 Cholera Cases". News18. Retrieved 16 March 2020.
- ↑ Sunitha Rao R. "Cholera in Bangalore: Six cholera cases reported in one week in Bengaluru : Bengaluru News - Times of India". The Times of India. Retrieved 16 March 2020.
- ↑ "Cholera outbreak in southeast Bengaluru's tech corridor". Deccan Herald. 8 March 2020. Retrieved 16 March 2020.