The Greater Chennai Corporation is expanding its anti-rabies vaccination campaign, alongside its animal birth control programme and a proposed penalty for pet abandonment.
Vaccination and sterilisation address different problems. Sterilisation reduces the size of the street-dog population over time; vaccination reduces the risk of rabies transmission from the population that already exists. Only the second delivers a public-health benefit quickly.
Coverage, not the number of camps, determines whether such a drive works. Rabies control depends on reaching a high proportion of the animal population in a given area rather than a large absolute count spread thinly.