Locusts grow exponentially in two cyclones hit in 2018, enabled three generations of wildly successful locusts breeding in the period of nine months only.
The low immunization coverage and several socioeconomic factors, such as poverty, illiteracy, and lack of access to immunization and community health services, contribute much towards polio campaign failure.
We cannot make a whole virus as that would mean synthesizing and arranging the 30 to 40 000 nucleotides that its genome is comprised of, which is not possible.