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Ross’s malaria research spanned two Indian cities. What exactly did his 1898 Calcutta work establish, that his 1897 Secunderabad work had not yet shown?

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1. Ross’s malaria research spanned two Indian cities. What exactly did his 1898 Calcutta work establish, that his 1897 Secunderabad work had not yet shown?

That mosquitoes carry the malaria parasite in their gut

The specific mosquito species responsible for transmission

That mosquito bites can transmit disease in general

The parasite’s full transmission cycle, from mosquito to bird to mosquito, using avian malaria

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Ross’s malaria research spanned two Indian cities. What exactly did his 1898 Calcutta work establish, that his 1897 Secunderabad work had not yet shown?

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