In this task, you're given a paragraph from the research paper and your task is to generate a suitable title for the research paper based on the given paper. Under 100 words is a good title length.

[EX Q]: Background: Porcine circovirus type 2 (PCV2) has been associated with several disease complexes, including reproductive failure. The aim of this study was to identify the subtypes of PCV2 that are associated with reproductive failure in pigs from the State of São Paulo, Brazil and to investigate co-infections with other infectious organisms. Findings: Samples of 168 aborted foetuses or mummified foetuses from five farrow-to-finish swine farms known to be infected with PCV2 and located in the State of São Paulo were tested for PCV2 by polymerase chain reaction (PCR). Positive samples were additionally tested for porcine parvovirus (PPV), Leptospira spp. and Brucella spp. by PCR. PCV2 was detected in 18 of the samples (10.7%). PPV, Brucella spp. and Leptospira spp were found in 2, 10 and 0 cases, respectively. Eleven PCV2 strains were sequenced and determined to be either genotype 2a (n = 1) or 2b (n = 10). The findings indicate that the frequency of PCV2 infections in aborted porcine foetuses from the State of São Paulo is rather low (10.7%) and that co-infection with other pathogens is common and may be involved in PCV2 associated reproductive failure. No repeatable, characteristic amino acid motifs for regions of the PCV2 capsid protein seemed to be associated with abortion in sows.
[EX A]: Detection of porcine circovirus genotypes 2a and 2b in aborted foetuses from infected swine herds in the State of São Paulo, Brazil

[EX Q]: KEYWORDS Travel health Travel abroad Pretravel Assessment Posttravel Assessment Primary care providers manage the majority of travel medical care. The purpose of the pretravel visit are risk assessment and mitigation. Encourage travelers to enroll in the Smart Traveler Enrollment Program for travel advisories. The Centers for Disease Control and Prevention travel website offers destination-specific, point-of-care resources for clinicians and travelers. Travelers who are visiting friends and relatives are a high-risk group. The most common syndromes in returning travelers are gastrointestinal, febrile, and dermatologic. Prim Care Clin Office Pract 45 (2018) 541-554
[EX A]: Health Guidelines for Travel Abroad

[EX Q]: Objective. To understand the causes and transmission routes of, as well as risk factors, for a Salmonella outbreak in a tour group. Method. A retrospective cohort design was used to conduct an epidemiological field investigation. Real-time fluorescent quantitative PCR, bacterial culture, and serological identification methods were used for pathogen detection and identification. Result. ere were 7 cases of illness, and the attack rate was 46.67%. e onset date was concentrated on May 9 and 10. All cases were found in the tour group, and no cases occurred in the nontour group. e results of this retrospective cohort study showed that the consumption of boiled eggs for breakfast on May 9 was a common factor (R 2 � 6.67, P � 0.023). Salmonella enteritidis was identified from the patients' stool and vomit. Conclusion. e food poisoning epidemic was caused by Salmonella enteritidis. In the summer and autumn, attention should be paid to preservation, processing, and cooking of food to avoid bacterial contamination. To prevent sickness, travelers should know the disease prevalence at their destinations in advance.
[EX A]:
Survey of Traveler's Diarrhea: Epidemiology and Testing Reveal the Source