A study of prevalence and seasonal trends of different malarial species in district hospital

Pankti D. Panchal, Minal B. Trivedi, Nimisha Shethwala, Himanshu S. Khatri


Background: Malaria imposes great socio-economic burden on humanity. In India, the epidemiology of malaria is complex because of wide distribution of anopheline vectors which transmitting mainly two Plasmodial species named P. falciparum and P. vivax. Though India is one of the known endemic countries, incidence of malaria is commonly influenced by environmental factors like climate, season, temperature and socioeconomic status. Objectives of the study were to know the prevalence of different malarial species and to know the seasonal trend of malaria.

Methods: This study done microbiology department of district hospital over period of June 2015 to December 2015. We had collected total 6763 samples. We used Microscopic examination for the diagnosis of malaria by preparing thick and thin smears and stained using field stain.

Results: We had collected total 6763 samples out of which 108 samples are found microscopically positive (1.5%). In our hospital we observed only Plasmodium vivax and Plasmodium falciparum spp. Prevalence of P. vivax (64%) found more compare to P. falciparum (34%) and peak positivity rate found in July to October.

Conclusions: In our study the most frequently implicated species was P. vivax. This indicates that P. vivax is the most widespread infection in India which results in a pronounced morbidity and the seasonal prevalence observed high in July to October. In order to implement effective preventive measures, proper surveillance on the incidence and prevalence of malaria is required.


Plasmodium vivax, Plasmodium falciparum, Malaria, Seasonal trends

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Parasitology (Protozoology And Helminthology) by K.D. Chaterjee, 13th edition, Feb 2011, CBS Publishers and Distributors pvt . ltd.

Snow RW, Guerra CA, Noor AM, Myint HY, Hay SI. The global distribution of clinical episodes of Plasmodium falciparum malaria. Nature. 2005;43(4):214-7.

WHO. World Malaria Report 2014. WHO, Geneva. 2014. Available at iris/ bitstream/ 10665/144852/2/9789241564830_eng.pdf

Malaria situation. National Vector Borne Disease control Programme. Available at Doc/ mal_situation_Jan2015.

Kumar A, Valecha N, Jain T, Dash AP. Burden of Malaria in India: Retrospective and Prospective View. Am J Trop Med Hyg. 2007;77(6):69-78.

Pemola N, Jauhari RK. Climatic Variables and Malaria Incidence in Dehradun, Uttaranchal, India. J Vect Borne Dis. 2006;43(1):21-8.

Bonnlander H, Rossignol AM, Rossignol PA. Malaria in Central Haiti: a hospital based retrospective study, 1982­1986 and 1988­1991. Bull Pan Amer Hlth Org. 1994;28(1):9­16.

Park K. Text book of preventive and social medicine. XVII edition, November 2015;193.

Muddaiah M, Prakash PS. A study of clinical profile of malaria in a tertiary referral centre in South Canara. J Vect Borne Dis. 2006;43:29-33.

Zubairi ABS. Severe Plasmodium vivax Malaria in Pakistan, Emerging Infectious Diseases. 2011;19(11):1851-4.

Jivabhai HT, Kanubhai VB. Retrospective study of malaria cases attending at tertiary care level hospital in Rajkot city, Gujarat, International journal of current research. 2014;6(4):6273-4.

Prajapati B, A Patel, M Patel. Study of hospital based malaria cases in Mehsana district Of North Gujarat. The Internet Journal of Third World Medicine. 2006;5(1):1-6.