Introduction Whooping cough and measles, respectively known as pertussis and rubeola, are two infectious diseases that stand out due to high transmission rates. Vaccination, as a preventative measure, allows defending against such conditions, but the procedure nonetheless retains some specifics that pertain to different age groups. Examining rubeola and pertussis through certain cases allows not only solidifying knowledge of communicable diseases but also of the effects of immunization. Rubeola Humans communicate measles, as part of the airborne group of viruses, through daily interactions, not necessarily through direct physical contact. Thus, “direct contact with droplets from respiratory secretions of infected persons” as well as airborne routes effectively transmit rubeola (Gershon, 2015, p. 1968). Treating measles becomes possible by symptom identification, such as high fever, runny nose, and red, watery eyes, which are catalysts for disease transmission and are eventually joined by a body-covering rash (“Measles vaccination,” 2016). The incubation period for measles is 10-14 days, with transmission occurring from four days before to four days after rash development (“Measles vaccination,” 2016). Despite measles having few treatment options, healthcare professionals recommend hospitalization in the event of complications such as ear infections, pneumonia, or diarrhea (“Measles vaccination,” 2016). Therefore, rubeola is an ailment that is hard to defend against without immunization, exhibiting common cold signs before complication development. Considering these complications, which may lead to the death of the assailed, vaccination becomes an essential step in disease prevention. An MMR vaccine successfully prevents measles, with immunization available for children, and the dose is dependent on the recipient’s age (Gershon, 2015). CDC’s Advisory Committee on Immunization Practices (ACIP) recommends “children get two doses of MMR vaccine,” the first one before 15 months old and the second before six years old (“Measles vaccination,” 2016, para. 2). ACIP explains the MMR vaccine as being safe and effective, with little to no complications and immunization benefits outweighing infection drawbacks (“Measles vaccination,” 2016). Thus, having understood rubeola’s contagiousness, the event of entrance into the US of an international traveler who happens to be a disease carrier puts unvaccinated individuals at risk, especially young children. Pertussis Whooping cough is a respiratory, bacteria-caused illness that may be apperceived by any individual since it is solely human-transmitted. Its symptoms are exhibited in a low fever and mild coughing that eventually transform into coughing fits, exhaustion, and vomiting, which contribute to high disease transferability (“Whooping cough (pertussis) vaccination,” 2018). Pertussis may be spread as long as two weeks after the start of coughing symptoms and affect even vaccinated individuals, with an incubation period of 7-10 days (Waters & Halperin, 2015). Infants are susceptible to pertussis not only because of its high infectivity but also because they lack their own antibodies. Infection of children younger than three months must be countered with an assessment of the baby’s condition through apnea checks