Critical Reasoning (CR) | According to some statistics, most toddlers aged 1-2 are typically

Since the human immune system develops antibodies against viruses only after the first exposure, the study's finding strongly contends that the actual cause for young toddlers to become affected by viral infections during their first year in daycare does not stem from their young age, but rather from the fact thattheir immune systems have not yet developed the antibodies needed to combat these viruses