India Ross embarked for India on 22 September 1881 on the troopship
Jumma. Between 1881 and 1894 he was variously posted in
Madras,
Moulmein (in Burma/
Myanmar),
Baluchistan,
Andaman Islands,
Bangalore and
Secunderabad. In 1883, he was posted as the Acting Garrison Surgeon at Bangalore during which he noticed the possibility of controlling mosquitoes by limiting their access to water. In March 1894 he had his home leave and went to London with his family. On 10 April 1894 he met Sir
Patrick Manson for the first time. Manson who became Ross's mentor, introduced him to the real problems in malaria research. Manson always had a firm belief that India was the best place for the study. Ross returned to India on
P&O ship
Ballaarat on 20 March 1895 and landed in Secunderabad on 24 April. Even before his luggage was cleared in the custom office, he went straight for Bombay Civil Hospital, looking for malarial patients and started making blood films.
Discovery of malaria-causing mosquito Ross made his first important step in May 1895 when he observed the early stages of malarial parasite inside a mosquito stomach. However, his enthusiasm was interrupted as he was deployed to Bangalore to investigate an outbreak of
cholera. Bangalore had no regular cases of malaria. He confided to Manson stating, "I am thrown out of employment and have 'no work to do'." But in April he had a chance to visit Sigur Ghat near the hill station of
Ooty, where he noticed a mosquito on the wall in a peculiar posture, and for this he called it "dappled-winged" mosquito, not knowing the species. In May 1896, he was given a short leave that enabled him to visit a malaria-endemic region around Ooty. In spite of his daily quinine prophylaxis, he was down with severe malaria three days after his arrival. In June he was transferred to
Secunderabad. in the Indian Medical Gazette and subsequently in the December 1897 issue of
British Medical Journal. In the evening he composed the following poem for his discovery (originally unfinished, sent to his wife on 22 August, and completed a few days later): This day relenting God Hath placed within my hand A wondrous thing; and God Be praised. At His command, Seeking His secret deeds With tears and toiling breath, I find thy cunning seeds, O million-murdering Death. I know this little thing A myriad men will save. O Death, where is thy sting? Thy victory, O Grave?
Discovery of malaria transmission in birds laboratory of Presidency Hospital in Calcutta In September 1897, Ross was transferred to Bombay, from where he was subsequently sent to malaria-free
Kherwara in
Rajputana (now
Rajasthan). Frustrated by lack of work, he threatened to resign from the service as he felt that it was a death blow to his research. It was only on the representation of Patrick Manson that the government arranged for his continued service in Calcutta on "special duty". Ross immediately carried out research in malaria and
Visceral leishmaniasis (also known as kala azar), for which he was assigned. He was given the use of Surgeon-Lieutenant-General Cunningham's laboratory for his research. He had no success with malarial patients because they were always immediately given medication. He built a bungalow with a laboratory at Mahanad village, where he would stay from time to time to collect mosquitoes in and around the village. He employed Mahomed (or Muhammed) Bux and Purboona (who deserted him after the first payday). As Calcutta was not a malarious place, Manson persuaded him to use birds, as being used by other scientists such as
Vasily Danilewsky in Russia and
William George MacCallum in America. Ross complied but with a complaint that he "did not need to be in India to study bird malaria". By March he began to see results on bird parasites, very closely related to the
human malarial parasites. Using more convenient model of birds (infected sparrows), by July 1898 Ross established the importance of culex mosquitoes as intermediate hosts in
avian malaria. On 4 July he discovered that the
salivary gland was the storage sites of malarial parasites in the mosquito. By 8 July he was convinced that the parasites are released from the salivary gland during biting. He later demonstrated the transmission of malarial parasite from mosquitoes (in this case
Culex species) to healthy sparrows from an infected one, thus, establishing the complete life cycle of malarial parasite. In September 1898 he went to southern
Assam in (
northeast India) to study an epidemic of Visceral leishmaniasis. He was invited to work there by Graham Col Ville Ramsay, the second Medical Officer of the Labac Tea Estate Hospital. (His microscope and medicals tools are still preserved, and his sketches of mosquitoes are still on display at the hospital.) However, he utterly failed as he believed that the kala-azar parasite (
Leishmania donovani, the very scientific name he later gave in 1903) was transmitted by a mosquito, which he refers to as
Anopheles rossi (scientific name given by G.M. Giles). (It is now known that
kala azar is transmitted by
sandflies.)
England In 1899, Ross resigned from the Indian Medical Service and went to England to join the faculty of the
Liverpool School of Tropical Medicine as a lecturer. He continued to work on prevention of malaria in different parts of the world, including
West Africa, the
Suez Canal zone,
Greece,
Mauritius,
Cyprus, and in the areas affected by the
First World War. He also established organisations for fighting malaria in India and Sri Lanka. In 1902, Ross was awarded the
Cameron Prize for Therapeutics of the University of Edinburgh. He was appointed as Professor and Chair of Tropical Medicine of the Liverpool School of Tropical Medicine in 1902, which he held up to 1912. In 1912 he was appointed Physician for Tropical Diseases at
King's College Hospital in London, and simultaneously hold the Chair of Tropical Sanitation in Liverpool. He remained in these posts until 1917 when he became (honorary) Consultant in
Malariology in
British War Office. He travelled to
Thessaloniki and Italy in November to advise and on the way, "in a landlocked bay close to the Leucadian Rock (where Sappho is supposed to have drowned herself)", his ship escaped a torpedo attack. Between 1918 and 1926 he worked as Consultant in Malaria in the
Ministry of Pensions and National Insurance. Ross developed mathematical models for the study of malaria
epidemiology, which he initiated in his report on Mauritius in 1908. He elaborated the concept in his book
The Prevention of Malaria in 1910 (2nd edition in 1911) and further elaborated in a more generalised form in scientific papers published by the
Royal Society in 1915 and 1916; some of his epidemiology work was developed with mathematician
Hilda Hudson. These papers represented a profound mathematical interest which was not confined to epidemiology, but led him to make material contributions to both pure and applied mathematics. Ross was one of the supporters of
Sir William Osler in the founding of the
History of Medicine Society in 1912, and in 1913 was the history of medicine section's vice-president. Between 1913 and 1917, he received some financial support from
Sir Edwin Durning-Lawrence, and led experiments at the Marcus Beck laboratory in the
Royal Society of Medicine building at 1 Wimpole Street, London.
Ross Institute and Hospital for Tropical Diseases The Ross Institute and Hospital for Tropical Diseases was founded in 1926 and established at Bath House, a grand house with keeper's lodge and large grounds adjacent to Tibbet's Corner at
Putney Heath. The hospital was opened by the then
Prince of Wales, the future King Edward VIII. Ross assumed the post of Director-in-Chief until his death. The institute was later incorporated into the
London School of Hygiene & Tropical Medicine in Keppel Street. Bath House was later demolished and mansion flats built on the property. In memory of its history and owner the block was named Ross Court. Within the grounds an older dwelling, Ross Cottage, remains. == Nobel Prize ==