Scientists said current rainfall "was one of the most intense ever recorded in the region" between October and December.
Vaginal ring, made of silicone, slowly releases anti-retroviral drug over one-month period.
There’s a whopping $41.3 billion annual gap to meet adaptation measures by 2030.
Researchers would investigate how home-grown solutions could be implemented in communities affected by the disease.
The choice of the least cost open-cut trenching method for river crossings in the country remains controversial, even among experts.